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[[quoteright:256:[[VideoGame/SuperMarioBros2 http://static.tvtropes.org/pmwiki/pub/images/smpubi6wosg_3311.png]]]]
[[caption-width-right:256:Sometimes it takes diligent effort to reach rock bottom.]]

->''"No matter how low your expectations of the users are, they will always find new ways to disappoint you."''
-->-- '''Developer proverb'''

There's UnwinnableByDesign, where a game is intentionally unwinnable if you do a certain thing. And there's UnwinnableByMistake, where a glitch prevents you from winning.

And then there's ''this''.

This situation is for when you can render your game Unwinnable by doing something utterly dumb, or something no sane player would attempt in any conceivable gameplay.

This trope overlaps both with UnwinnableByMistake and UnwinnableByDesign. Usually it is the testers' job to think of the craziest possible decisions a player might make, and make sure the game still works properly. On the other hand, designers may decide they simply cannot prevent unwinnable situations from occurring altogether, and leave them in the game, reasoning that the player ''deserves'' such an outcome if they do something so obviously suicidal.

Other times, it's a reasonable oversight. When the fruits of a few dozen programmers gets into the hands of thousands or even millions of players, odds are at least a few of them are going to be far more creatively insane than anyone could realistically account for. But compare DevelopersForesight for examples of where they actually ''do''.

In many genres, it's nearly impossible to avoid it. For example, in a FirstPersonShooter, the player can fire away all the ammunition, enter a fight with a health bar at nearly zero, and save. In a strategy game, one can stay still, not gathering or building anything, and when the enemy attacks with overwhelming force, save. And in almost any game that allows you to save at any time, you can save just before (and sometimes just ''after'') a death, when it's too late to do anything about it. The latter case can occasionally overlap with UnwinnableByMistake in a game with quicksaves, [[ReflexiveResponse if you hit quicksave when you meant to hit quickload and have no other saves]]; autosaves can lead to a similar situation, although you usually need to be playing the game in a slightly-insane manner for it to happen.

Subtrope of WhoWouldBeStupidEnough - the answer is any player who attempts this. Compare EarnYourBadEnding.

!!VideoGame Examples:

* ''Franchise/SuperMarioBros'':
** The MinusWorld in ''VideoGame/SuperMarioBros1'', reachable by performing a glitch in World 1-2. It's Unwinnable because the player always goes back to the start whenever the alleged exit is reached, and Insane because turning the World 4 warp pipe into the World -1 warp pipe is almost impossible to do by accident. Since time doesn't restart, the player is stuck in the level until time expires. Averted, however, in the FDS version, whose MinusWorld has different levels. It is actually possible to complete the game this way in the FDS version (and it takes less time than doing it the normal way).
** Also in ''VideoGame/SuperMarioBros1'', there are some places where you can jump on the ceiling in a castle level (i.e. x-4 level) and get stuck because of the game's RatchetScrolling, and you have to let the timer run out.
** As shown in the picture, one level (World 2-2) of ''VideoGame/SuperMarioBros2'' features two pits, one of which becomes a trap, but only if you're patient enough to dig up all the dirt in it. And unlike most other games in the ''Franchise/SuperMarioBros'' series, there's no [[TimedMission time limit]] to wait out, although there is a [[PressXToDie suicide code]] to restart the level at the cost of a life. This was fixed in the GBA port ''Super Mario Advance'', which added a vase at the bottom of the pit. Entering and leaving the vase causes the dirt blocks to reset, allowing you to escape if you manage to get yourself stuck.
** Several levels in worlds 6 and 7 of ''VideoGame/SuperMarioBros3'' require ducking through a one-block-high hole to pass, something that can't be done if you're in the Frog suit. And in at least one of them, you can't even commit suicide by way of BottomlessPit. Considering how difficult it is to maneuver on land with the Frog suit, why would you use it from your inventory prior to entering a level with no water? (Or, for that matter, if you're good enough not to lose a life between the last water level and the first of these, why wouldn't you change your powerup during one of the dozens of intravening levels?) If there are no enemies nearby to run in to, you ''can'' commit a slower form of suicide by waiting for the [[TimedMission timer to run out,]] thus avoiding the need to reset the game.
** It's impossible to do without cheats, but Kuribo's Shoe can be used in any level. However, using it in a water level causes you to sink to the bottom instantly.
** Website/{{YouTube}}r nathanisbored demonstrates several ways to trap yourself in ''VideoGame/SuperMarioWorld'' in his ''Let's Glitch Super Mario World'' series. [[https://www.youtube.com/watch?v=oSexrjrAtOQ For example,]] you can perform an elaborate series of glitches to complete the "secret exit" of a level that doesn't actually have a secret exit, which will erroneously set the "this path is already open and doesn't need to be opened again" flag for a vital path, without ''actually'' opening that path, thereby locking you out of the rest of the game. [[https://www.youtube.com/watch?v=4WjYxb5Ernk&index=45&list=PLPKdk0q-d9_kFh0SqZMXOu0yBK70CfH-L This video]] demonstrates two ways to make individual levels unwinnable, and the Ghost Ship episode demonstrates another.
** In ''VideoGame/SuperMarioGalaxy2'', it's possible to trap yourself in the second mission of Slimy Spring Galaxy, if you jump back down the slide AFTER the Star appears.
** ''VideoGame/SuperMario64'' has all the fights against Bowser requiring you to throw him into bombs to hurt him. It's possible to run into the bombs yourself via long jumping and doing this to every bomb in the arena makes the fight unwinnable. The remake for the DS fixed this by always having a bomb respawn in another, random location if the last one was detonated.
** Being a level-creating game, getting Mario stuck with no way out is prone to happen in ''VideoGame/SuperMarioMaker''. Hence, there is an option to pause the game and start over. (If you're playing someone else's course, Mario loses a life, then returns to the start.)
** ''VideoGame/PaperMario64'' is a buggy game, especially compared to its [[VideoGame/PaperMarioTheThousandYearDoor relatively polished successor]]. As such, there are a lot of ways to cause this, as demonstrated by [[https://www.youtube.com/watch?v=ab9vw_QercM this video.]] The methods outlined are:
*** Playing through the game until Chapter 7, then going back to Mt. Lava Lava. Normally the area is blocked off after it is finished, but by using a glitch it is possible to return and go through it all again. This brings up a save prompt, then the game tries to load a Chapter 8 Peach cutscene. Since one doesn't exist, the game is stuck on the establishing shot of Peach's and Bowser's castles floating in the air forever. If the player used that save prompt, the file is now useless; it will lead straight to this shot and never leave, to creepy effect.
*** Shiver Mountain contains pillars holding an item. Taking them causes a wall to block Mario's path, and the wall can only be raised by placing another item in the pillar. If the player clips through that wall, they're trapped when they need to backtrack.
*** There's a save block in Mt. Lava Lava that, with a well timed spin jump, can bring up the save prompt and allow the player to control Mario at the same time. If the player has 1 HP and saves just as they are about to fall on a Spiny, Mario will jump on the Spiny and die, causing an infinite death loop.
*** Goompa is meant to be a GuestStarPartyMember, but it's possible to skip the scene where he leaves, causing him to stay in the party. However, he can only be changed while in a battle, as doing so outside will crash the game. In Chapter 7, Mario is trapped in Shiver City after he's accused of murdering the mayor. At this point, Mario needs to retrieve a warehouse key by swimming underwater with Sushie. Since there isn't any way to switch to another partner, the player is trapped.
*** It's also possible to skip having Goompa as a temporary partner, leaving Mario with *no one* as a party member. The game... doesn't take this well, as it crashes within seconds whenever you attempt to enter the Toad Town sewers with no partner.
* ''Franchise/{{Pokemon}}'':
** Who with any sense would go to an island with only a Finneon capable of getting them off again, and trade that Finneon for a Magikarp which can't?[[note]]Worth noting is that you can still fish on the island, and through battles, get the Magikarp to faint and warp you back to a Pokémon Center. One could also use said battles (or some RareCandy) to level up said Magikarp until it evolves, since its evolution can learn the Surf HM. Since Finneon itself can only be caught through fishing and fishing rods are key items (i.e. can't be removed from the inventory), a player would have had to do this with a Finneon they traded from another game and purposely never pick up any of the three fishing rods.[[/note]]
** It is possible to strand a player on Cinnabar Island by defeating all the trainers at Blaine's Gym and the Cinnabar Mansion, picking up all the hidden items around the island, healing at the Pokémon Center (ensuring this is where the player will respawn if their party is knocked out), releasing all Pokémon that know or are capable of learning Fly and/or Surf, throwing away all items from the player's bag that can be discarded, and draining their bank account by buying items at the store and throwing them away. This ensures that the player cannot catch any new Pokémon (because they lack any Poké Balls or funds to buy them) and cannot escape the island (as Surf and Fly are the only ways to leave). Also, it is possible to strand the player on Sootopolis City in the Gen 3 games by [[https://www.youtube.com/watch?v=B8sTGne04ds a similar method]]; this is also doable in their Gen 6 remakes, but only before getting the Eon Flute.
** Thanks to a glitch involving the Safari Zone, saving, ledges, and poison, one can gain the ability to walk through walls. However, this ability is lost upon reloading the game, so if one saves and reloads inside a wall, they'll be stuck. Similarly, one can use the glitch to reach the Seafoam Islands without any Pokémon that know Surf or Fly. However, the glitch is so elaborate that one would need instructions to pull it off.
** Also, if in Gen I you manage to defeat all possible trainers and then spend/lose all your money before entering Saffron City, it is impossible to buy a drink so the guard lets you pass. The only way to correct this is by catching/trading a Pokemon with Pay Day[[note]]At this point in Red and Yellow, trading is the only option[[/note]] or selling an item worth enough money for the drink-- though, of course, one could always toss all their non-Key items, as explained above. This was eliminated in the Gen III remakes by making the guards ask for tea, a key item obtained from a little old lady, instead of a drink you bought with your own money.[[note]]This was actually implemented not to avoid this, but to prevent SequenceBreaking, since the introduction of held items would allow you to obtain one of those drinks via trading before reaching Celadon City.[[/note]]
** The same process could make the game unwinnable by making it so you can't enter the Safari Zone (which requires an entrance fee) to get the HM in it, except by the solutions given already. In an ObviousRulePatch, the gatekeeper will actually let you enter (with proportionately fewer Safari Balls than normal) if you don't have enough money, but he'll only do it ''once'', so if you don't get both of the key items hidden inside in one go, you're done.
** Through manipulating the movement of a specific NPC in the starting town in Gen I, it is possible to get them to stand in your way during the first [[UnskippableCutscene in-engine cutscene]], resulting in you getting stuck in a wall and getting softlocked before even acquiring your very first pokémon. The current holder of the [[OverlyNarrowSuperlative world record for getting softlocked in Gen I]] is [[https://www.youtube.com/watch?v=MWymFzb5RzE Shenanagans Smash]] with 2 minutes and 6 seconds.
** In addition, Gen I has the famous Glitch City, which - if the player follows a particular sequence of actions involving the Safari Zone - will put you in a "town" made of a random jumble of tiles pulled from the town you last visited. Walk too far North, South, or East and the game crashes. Walk too far West and... you lose the ability to go back and ''then'' the game crashes. The only way out is to Fly to another city or Teleport/Dig yourself back to the last Pokemon Center you visited. So if you save in Glitch City without a Pokemon who knows one of those moves, you're ''screwed''.
** Also qualifying in Gen I are the glitch Pokemon, such as Missingno. and 'M. Granted, you usually have to go out of your way to encounter them, especially in Yellow, but it seems the harder you have to look the more damage they do. While Missingno. rarely does anything worse than mess with your Hall of Fame, there exist other glitched Pokemon and trainers can screw up your party, destroy your savegame, and in some case ''render the entire cartridge unusable''. [[http://lparchive.org/Pokemon-Blue/Update%2001/ Demons in all their glitchy glory here.]]
** An [[ArtificialStupidity AI glitch]] in Gen I would cause trainers to always use moves of a [[ElementalRockPaperScissors super-effective]] type when possible even if the move was non-damaging. A player's successful use of the move Rage would [[UnstoppableRage lock them into that move without letting them take any other action]]. In both cases, PP would not be consumed. Therefore, get a Mon with Rage that's weak to the Psychic type, set it up against a Mon whose only Psychic-type move is Rest or Recover, and make sure your Mon is too weak for Rage to outdamage the enemy's healing. [[https://www.youtube.com/watch?v=Hfwm4ov_ZKc You are now trapped in an infinite battle.]] If you set this up against Lorelei, saved, and the rest of your {{Mon}} team isn't enough to beat her Dewgong, you've also locked the save file. [[note]] It is ''technically'' possible to get out of this. Due to another AI flaw, each move with the exception of Swift, which was specifically programmed to never miss, has a 1 in 256 chance of missing. If the initial Rage ''misses'', it loses 1 PP and you'll be that much closer to running out of moves to use and losing the battle via using Struggle to eventually KO your own Pokemon. So in order to get out of the infinite battle you have to miss 20 times in a row. The chances of that happening? ''1 in 68 quindecillion.'' [[/note]]
** In the Cinnabar Island Mansion, there is one specific Burglar NPC who can challenge you to a battle in a spot that will trap you in a 1x1 space, surrounded by rubble, a table, and the Burglar in question if you win. This means if you are there without a Mon that knows Dig or Teleport, and you don't have an Escape Rope, you are good and perma-trapped unless you shut off the game and restart, because you cannot encounter wild Mon to Faint your team and get you out. Then, you can go even further and save in that spot with nothing able to get you out, and then you will have to restart your game, since you'll never be able to get away. However, there's a far greater chance you'll lock eyes with him in a normal place, or the space before (giving you a 1x2 space in which you can still encounter wild Pokemon and faint your team to warp back to a Pokemon Center), and the level of preparation required for you to get into this situation means you have to know what you're doing before you come to that trainer. LetsPlay/TwitchPlaysPokemonRed [[https://imgur.com/WU9fUEG almost got caught, managing to get trapped in the 1x2 space, for several hours while they were forced to faint their entire team.]]
** In ''[[VideoGame/PokemonRumble Pokemon Rumble World]]'', it is possible to release all of your Pokémon except one that only knows non-damaging moves like Growl or Flash, making you unable to defeat and thus capture other Pokémon. If you have the Move Center unlocked, you may be able to get money from barrels until you have enough to tutor that Pokémon a damaging move. If not, the only option is using gift codes[[note]]Gift Pokémon that are released can be reobtained with the same code.[[/note]] or getting money or diamonds from barrels, [=StreetPass=]/[=spotPass=] players, or changing your character settings once per day. But if you've reached a high enough Rank, even that might not be enough, since wild Pokémon's strength increase in relation to your Rank, and Event Pokémon have fixed (and generally low) strength. Diamond-price attacks might help since they do more damage, but it will require careful dodging since your 'mon's low health will probably make most attacks a OneHitKill.
** In ''VideoGame/PokemonGo'', it used to be theoretically possible to max out the inventory space and then fill it with only incubators to create a catch-22 situation where you're unable to ever again acquire any items, since incubators need eggs to be "consumed" (and cannot be discarded) and you can't expand the inventory further to make room for those eggs. Newer versions store eggs in the Pokemon section, on their own tab, instead of as items.
* ''VideoGame/{{Diablo}}'' has strong {{roguelike}} influences and can screw you over in numerous other ways.
** When you die, the save function is disabled, but not ''immediately''. Yes, saving at this point makes the current game unwinnable. It requires timing by the milliseconds, though. A frame too late and the game disables the save function. The easiest way is probably to get a +HP item and then get yourself down to health lower than said item provides you. When you remove the item, you die. If you click and press ESC almost exactly at the same moment, you get to save without having that item on you. No, there is no time to put it back on.
** It's possible to make the game unwinnable by abusing the Chamber of Bone entrance in a hilariously stupid way. You need to teleport there before you use the book to open it (either with a scroll of teleport or using a scroll of town portal then going there from town) and leave yourself stuck in a sealed room. Yes, you need to be completely stupid to do this unless you're doing it intentionally for the lulz.
* Play through ''VideoGame/DragonAgeOrigins'' without ever taking a level or making a hard save. Get into a fight with an autosave at the start that you can't win at your low level. It's also possible to make the two candidates of the Orzamar throne distrust you, forcing a hard restart.
* In ''VideoGame/{{Banished}}'', you can make it impossible to expand your town by wasting all your stone and iron (for instance by making tools and paved roads) and/or abandoning them on the other side of a river and dismantling the bridge that leads there, leaving you without enough stone to rebuild it. Since your only source of those two resources besides gathering are the Mine and Quarry (and they require stone and iron respectively) is the Marketplace (which also requires Iron to build) you're essentially left stranded.
* It's possible to make ''VideoGame/MonsterRancher 2'' unwinnable. You get a GameOver if, at the start of the month, you have less than 10 G and are unable to feed your monster. In normal gameplay the only way to get this situation is if you saved after the last tournament of the month your monster could possibly enter, you have no items to sell, your monster is too young to sell, all of your monsters in storage are too young to sell, and your monster never brings you any item you could possibly sell for money out of the blue. Another, easier way is to [[PressStartToGameOver combine monsters at the very start of the game until you run out of money, gaming over before you make it to the ranch at all]].
* In ''VideoGame/RagnarokOnline'', certain maps have mesas or other landforms or rooms that can only be accessed by teleporting to a random cell on the map. A player who doesn't have the teleport skill can use a flywing item to teleport until they arrive at one of these places, and if they run out of teleporting items on that exact teleport and don't know the skill, they are stuck because these places usually don't spawn monsters and if you are at a high level [[NighInvulnerable it's unlikely a monster would be able to kill you anyways]] [[DeathOfAThousandCuts even if you took off all your armor and buffs and stood there letting it try to hit you for an hour]]. There are ways to fix this involving the help of another person (like contacting a GM to help you, or another player to teleport until they get there too and hand over some flywings or Butterfly Wings, get close enough to trade, kill you themselves, or warp you), but on your own, there is no way to get out of the situation, to the point that {{Jerkass}} players with the Warp Portal skill would make save points at these places and place warps under random people's feet, teleporting them there without warning and, if they happen to not have teleporting items handy, without any convenient way to leave.
* ''VideoGame/MetroidFusion'' has the [[http://www.metroid2002.com/fusion/other_the_tro_trap.php TRO Trap,]] which is a very tricky {{Sequence Break|ing}} that lets Samus fight Nettori before defeating Yakuza. It fails because the game breaks when bosses are defeated out of the scripted order.
* In ''VideoGame/MetroidPrime2Echoes'', it's possible with some heavy-duty glitch exploitation to skip the scene where [[BagOfSpilling Samus loses her gear to the Ing]]. The game can continue somewhat normally from there... but under no circumstances should you return to the area where that scene takes place. If you do, then the scene will play again, and all of your items will be lost. If you already collected them, then you can't collect them again.
* ''VideoGame/{{Minecraft}}'':
** It's possible to find a 2-blocks deep hole in the (indestructible) Bedrock, and jump in with nothing in your inventory. Be sure that the area around you is also lit up and sealed off so that it will be impossible for any mobs to enter into the hole and kill you/aid in your escape. ''RageQuit''. After Beta 1.8 added a hunger meter, it became possible to starve to death,[[note]]though the mechanics of hunger make this tedious, because you can't simply walk away from your computer for an hour and come back to the death screen[[/note]] taking this out of Unwinnable territory... but 1.0 added [[FinalDeath Hardcore mode]], which puts it right back in.
** You can also make a pool of lava in your respawn point.
** You can get a command block (this has to be obtained with a console command itself, even on creative) and set it up to the command [[spoiler:/kill @a]]. This will kill everyone on the multiplayer server and yourself (even on singleplayer) if you activate the command block with a redstone impulse. The unwinnable part comes in when you set that command block to repeat mode AND always active (goes off 20 times a second), constantly killing everyone with no way to recover except [[LevelEditor editing the map in an external program]] and removing the command block.
* It is possible to make the first two ''VideoGame/MonkeyIsland'' games unwinnable if you try very hard.
** In ''VideoGame/TheSecretOfMonkeyIsland'', spend all your coins, one by one, in the soda machine, until you don't have enough to pay for the sword, the shovel and the map. You can also use them up by giving them to Otis in prison. In the Special Edition this is impossible, since Guybrush will refuse to put more than one coin in the machine.
** In ''VideoGame/MonkeyIsland2LeChucksRevenge'', you need 6000 pieces of eight to buy a map piece from an antiques dealer. The intended path involves recovering the masthead from a shipwreck, which requires devising a way to strengthen your spit to win a spitting contest to raise money to hire a ship. However, you can get 1 piece of eight at a time for polishing one of the Men of Low Moral Fiber's peg leg; this cuts off before you get to 6000, but if you've bought something else from the antiques dealer, you can sell it back to him to get enough. Later, when Guybrush is captured by [=LeChuck=], he needs to strengthen his spit to escape; if you skipped that path and didn't know about the drinks, you're stuck. The CD-ROM and remakes of the game cap the amount of times you can polish his leg at 19 pieces of eight, however.
* ''VideoGame/ManiacMansion'': You could certainly make an unwinnable state, though some were harder then others. The fastest route was to recruit Jeff (no special skills) and one kid with special skills, then getting the kid with the skill killed. The ways to kill off your kid, though, were often in this category. You wouldn't want to take a dip in a radioactive pool or microwave the radioactive pool water, or give Ed the remains of his hamster after killing it in the microwave.
* In ''VideoGame/SuperSmashBros Melee'' and ''Brawl'', if you do an endless-time match with pause turned "off" (i.e. activate the setting that disallows pausing during a match), you can't escape the match unless you turn the game off. This isn't as serious as other UnWinnable cases, and in fact could occasionally be by UnwinnableByMistake (e.g. your friend keeps pausing the game to take Snapshots, so you end your match and turn pause "off." Then, forgetting that Pause is off, you later start an endless match to rack up your Playing Time. Unable to pause and reset your match, you made it unwinnable). But most of the time, you have to be trying.
* In ''VideoGame/LauraBow 2'', it is possible (although unlikely if you're one of those Sierra players who live under the mantra [[KleptomaniacHero "take everything that isn't nailed to the ground, and even if it is, solve the puzzle to trigger the anti-nailing event to nab it"]]) to make it impossible to get the good or semi-good endings if you've failed to get most or all of the evidence in the game. [[spoiler: If you don't pick up at least the evidence littered by the dead bodies, it doesn't matter if you can successfully identify the murderer to the correct victim and motive, or that you've successfully identified who had what dirty little secret--without proof they can't do anything with the murderer, the Dagger will go missing again, and the killer will still kill Laura.]]
** Although a bit difficult (and unlikely, considering the game's emphasis in examining everything), you can find both halves of the Rosetta Stones in the museum, but not actually examine them, preventing you from writing down hieroglyph letters written on the stones to add into your journal. The problem comes when you eventually meet [[spoiler: The Ra cultists]] in your chase, and you have to spell out the answers to their riddles using hieroglyphs (which Laura can't do if you didn't write them down, even if you know the answers).
* In ''VideoGame/LuxPain'', the game can become Unwinnable during Chapter 7. If you [[spoiler: take too long finding Yayoi Kamishiro when she is obviously suicidal, then you will be told that Liu Yee is going after her and get an automatic game over. Your time is basically measured by Nami's phone conversations with you. If you save your game after she's talked with you three times, then the game is Unwinnable.]] Luckily, the game warns you and tells you to make a new save before all this occurs; you should be fine as long as you follow the game's advice.
* ''VideoGame/NetHack'' has uncountable ways to [[NintendoHard kill you]], but very few ways to become [[http://nethackwiki.com/wiki/Unwinnable unwinnable]], most of which are variations of "tick off your quest leader before you get the [[PlotCoupon Bell of Opening]]". It's not a bug -- if you look in the game's source, you can see the developers included code to handle ''[[DevelopersForesight just that vanishingly unlikely situation]]''.
** The only unwinnable scenario that ''doesn't'' involve the quest leader or a [[GameBreakingBug glitch]] is if you destroy the Book of the Dead before using it to start the final phase of the game; this can only be "accomplished" by jumping into lava without fire resistance while wearing an Amulet of Life Saving--you die, and are brought back to life, but the Book is destroyed. This is highly unlikely to happen by accident, since fire resistance is very easy to obtain, the Book is usually acquired right before you need to use it, and lava is rare outside the Plane of Fire (which is way past the only part of the game that requires the Book.)
** Since [[ShopliftAndDie shoplifting is serious business]], shops are a good place to trap yourself. If you use or break some of the store's wares, the shopkeeper will block the exit until you pay them back. If you have insufficient gold and sellable items, can't sneak out (requires digging or teleportation), and aren't strong enough to kill the shopkeeper, you're stuck. A "liquor emporium" works well for this, since everything for sale is fragile glass bottles, and the shopkeeper only accepts gold and potions as (re)payment. Trying on a cursed cloak of invisibility with no means of uncursing it is a [[UnwinnableByMistake more plausible]] way to get trapped in a shop (you can't unequip cursed items, and shopkeepers will block the door when you're invisible, even if you're already inside).
* The airship Highwind is required to continue parts of the story in late Disc 2 and Disc 3 of ''VideoGame/FinalFantasyVII''. Thanks to the ability to bring Chocobos on board, it's possible to permanently lose access to the airship by parking it in an isolated area, riding your on-board Chocobo over mountains, rivers, and oceans back to the ranch, and releasing it (along with any other Chocobos you may have). In doing so, you have just lost on-foot access to the Highwind - which, as stated, is necessary to advance through the game. You no longer have any special Chocobos which might be able to bring you to the Highwind. Furthermore, it's impossible to breed any new special Chocobos because doing so requires "good" and "great" Chocobos, which are not found on the first continent. Your only way to access the second continent at this point is the Highwind...[[note]]The Cargo Ship which allowed you transport between Junon and Costa Del Sol stops running after you get the Highwind[[/note]] which you just lost all access to. For extra kicks, park it somewhere just nearby, like at one of the islands near Fort Condor, so you'll be able to see it and know that it's forever out of your reach. If you already have [[spoiler: Cloud back in your party]] after getting the Highwind, you'll need to access the sub and park it in Costa Del Sol first.
* One can make an unwinnable save-state in ''VideoGame/TheLastRemnant'', but only by deliberately doing so. Going to an area with incredibly high level monsters (compared to the current party), making them aggressive towards Rush, having them chase Rush into a corner and then saving will make the game essentially unwinnable, since upon loading there will be no way to avoid the encounter, and subsequent defeat.
* In ''VideoGame/DukeNukem3D'', you could actually save ''while dead''. However, the game protected you from ill-timed ''quick'' saves, stating helpfully "[[foldercontrol]]

[[folder: you cannot "quick save" when dead! ]]
** This can be made much worse in ''VideoGame/{{Doom}}'' or source ports, where you can quicksave with a Cyberdemon Rocket right into your face and loading said save data proves that you cannot escape fate, except in rare times when disabling Screen Wipe gives you the fractions of a second required to sidestep the rocket.
* In ''VideoGame/{{SaGa 2}}'', utilizing the "trashcan bug" can result in this if you overuse it. Using the trashcan at specific MAGI counts will give it the effect of other items. Most are pretty ordinary, but if you have exactly 67 or 68 MAGI, you can get free permanent-stat raising potions (Power at 67, Speed at 68) if you do this. However, overusing this glitch will screw up your MAGI counter after a certain number of uses (depending on equipped MAGI) and [[LaserGuidedKarma leave you unable to progress with the game.]]
* In ''VideoGame/{{Fallout 3}}'':
** The door to Vault 87 took a near direct hit from a nuke and is thus [[BorderPatrol irradiated to all hell]]. To even get close enough to [[CartographySidequest mark it on your map]] requires that the player be wearing some of the best [[HazMatSuit anti-radiation gear]] in the game and munch anti-Radiation pills like popcorn the entire time (even then, you'll still die in at most one minute). The problem is, the game on default settings autosaves when you discover a new location... (The Insanity in this case is attempting any of this without [[SaveScumming hard-saving beforehand]].)
** Another stupid way to make the game unwinnable is to access Vault 87 and the GECK before you're assigned the quest to do so, which results in you being locked out of the Citadel and Project Purity. You can also render the vault inaccessable altogether by doing a related sidequest too early.
** In Vault 92, you can glitch your way into the Overseer's tunnel, which leads to [[DisconnectedSideArea an otherwise inaccessible room]] in the Sound Testing sector; however, there is no way out of here other than using console commands on the PC to open the jammed door. The game also autosaves when you enter this room, so if you're not on a PC, you better have a manual save on hand.
* In ''VideoGame/TaskMaker'', you have to find an object requested by the title character to advance in the game. Should you choose to Bestow the task item to an NPC and then kill them, it will very likely not be on their person when they die. However, there are often far better objects that you can Bestow, and you don't really ''have'' to Bestow in the first place (it's mostly used to calm down angry monsters, but only up to a certain level).
* ''Franchise/TheLegendOfZelda'':
** It is theoretically possible in the very first game in the series to reach Ganon without the sword. For the uninitiated, this means ignoring the most basic weapon in the game, getting one room from the end, and being trapped in that room with the final boss and no way to beat him.
** ''VideoGame/TheLegendOfZeldaLinksAwakening'':
*** The game can be be made unwinnable in Dungeon 5 by pulling off a tricky diagonal jump to get into a locked door. The door the [[InterchangeableAntimatterKeys (generic)]] key is meant for has a replacement key behind it--this door does not, making it impossible to complete the 5th dungeon, meaning dungeons 6, 7, and 8 never open. There is also a place in Dungeon 4 which is supposed to be crossed using the dungeon's item, but can be ''just barely'' cleared with a running jump. If you can pull this off ''and'' use your remaining keys in exactly the wrong order, it is possible to make the dungeon unwinnable. This glitch was resolved in the DX version, where the jump distance and "ledge physics" were changed to make it much, MUCH harder to make the jump. When standing half on a ground tile and half on a hole tile, Link would slip toward the hole but could fight against it, which was how this glitch worked. In the DX version, the further into the hole that Link gets, the harder it becomes to fight.
*** Another way to make the game unwinnable is to use the infamous warp glitch. Near the starting point of a new game is a shop whose front yard and entrance is completely walled off by bushes. Using the warp glitch, you can teleport yourself into that yard. If you haven't obtained the sword yet, you're now stuck, as you have no way to remove the bushes in your way - you can't even use the warp glitch to get out, as it requires you to reach the edge of the screen. If you enter the shop and then save, you're now ''permanently'' stuck, since your save point will be the shop entrance. At least having to start over at this point isn't a big deal, since it's at the very beginning of the game.
** In ''VideoGame/TheLegendOfZeldaALinkToThePast'', it's possible to use a series of glitches to get to the room where Agahnim awaits without first acquiring the Magic Mirror or Moon Pearl. This is important because defeating Agahnim puts the main character in the Dark World... where he turns into a rabbit that can't attack or defend himself, unless he has the Moon Pearl to prevent the transformation. The only option is to return to the Light World... which can only be done using the Magic Mirror.
** ''VideoGame/ZeldaIITheAdventureOfLink'' has the "fairy warp" glitch.
*** Go to Darunia and jump from roof to roof until you reach the tallest building in town. Next, jump up off screen, use the Fairy spell, and push either left or right. You'll fall into a glitched-up town, and trying to leave it will deposit you in the middle of the ocean, unable to move.
*** You'll also be up the creek without a paddle if you opt to use the Fairy spell in the middle of a boss fight. There is no reason to do this whatsoever.
*** By using the aforementioned "fairy warp glitch" in a palace with falling blocks, it is possible to destroy the palace without completing it, but only if you have not already completed the first palace. (i.e., getting the candle, defeating Horsehead, and placing the crystal in the statue.) Make sure you reset without saving, unless you want to delete your character and start over. (See the "Legend of Zelda" section on the "UnwinnableByMistake" page.)
** It's possible to render ''VideoGame/TheLegendOfZeldaOcarinaOfTime'' completely unwinnable through a series of very complicated glitches that remove every option for getting to either Ganon or the credits.
*** If you're not familiar with Ocarina of Time glitches or speedrunning, there are multiple ways to get to Ganon, and other ways of beating the game by bypassing him completely by a glitch called "wrong warp". The glitch is ridiculously complicated, but it basically works by the player activating multiple scene changes at the same time, making the game add those two scene values together to get a different value. You can "wrong warp" out of the Gohma blue warp by doing a glitch called "Ocarina Items" (which lets you play any item like an ocarina) on the very edge of the blue warp, letting you walk around while the warp takes you up, and entering the boss room door exactly 101 frames later. The game adds these two values together and brings you to the scene where you just finished the tennis fight, conveniently bypassing the need for light arrows. Dying in Dodongo's Cavern while entering the blue warp has a similar effect, taking you to the credits.
*** There's another very, very complicated glitch called Bottle Adventure, in which you catch an item in a bottle you glitch onto your B button, which writes the value of the item on you you caught onto the item with the value of whatever you have on c-right. This glitch can give you items, but when you use it with certain items, it also takes some away. (If you'd like to read more, [[https://www.zeldaspeedruns.com/oot/ba/reverse-bottle-adventure ZeldaSpeedruns does a very good job of explaining this glitch.]])
*** Now, with all that said, what kind of player would activate all of the blue warps in the game so they can't be used to wrong warp to the end of the game, and then use bottle adventure to get rid of the light arrows they need to beat Ganon?
** There are a few ways to wreck a save file in ''VideoGame/TheLegendOfZeldaBreathOfTheWild'', but as expected they all require the player doing incredibly dumb things with glitches:
*** For one thing, you can leave the final battle with a glitch, which disables teleporting and saving. However if you go to Lurelin Village and play the gambling mini game, these features are reactivated, letting you save in either a Divine Beast or outside the game world itself (via more glitches). If this is done, the player is unable to ever escape since warping away is disabled without going to Lurelin Village, and they've now got no way to ever reach Lurelin Village. If they have no other saves left, well it's time to start the game over.
*** You can also duplicate the 'Wild' set with the (now patched) world reset glitch to fill up your inventory to the point you can't buy anything else. Once that's done, the file is unable to hold any other armour, since the 'Wild' set cannot be sold in shops, which in turn can make it impossible to get the Zora Armour. However, given you'd have to beat all 120 shrines before ever getting the Zora Armour (which involves exploring the entire map and solving numerous aspects of the main storyline), and how you'd then have to duplicate said set 33 or so times with the glitch afterwards... it's very unlikely anyone would ever do this by accident.
* It's entirely possible to do this in ''VideoGame/ResidentEvil4'' and ''VideoGame/ResidentEvil5'' if you sell all of your weapons and do something with the cash like purchase nothing but First-Aid Spray, ammo or grenades. It's also possible to kill merchants. Kill the merchant right before the Salazar fight ... goodbye Leon!
* ''VideoGame/FireEmblem''
** You can make the [[VideoGame/FireEmblemElibe seventh game]] unwinnable by managing to get everyone except Lyndis killed in Chapter 3, including [[CrutchCharacter Sain and Kent]] who will kill anything at that point in a few hits unless you purposefully take away their weapons or let the boss whale on them for several turns. Then in Chapter 4 you'll be tasked with protecting a NPC with Lyn guarding the way, but [[ButThouMust the tutorial will force you to move her away to talk with an enemy]] [[StupidityIsTheOnlyOption leaving the NPC completely defenseless]].
** Throughout the series, one can break everyone's weapons, then spend all your money on non-weapon items. Congratulations, you can no longer damage your enemies! ''[[VideoGame/FireEmblemAwakening Fire Emblem: Awakening]]'' rectifies this by giving Chrom the Falchion to start with, which is unbreakable and unsellable, and if he dies it's GameOver anyway. Still possible, however, if you give the weapon to someone who isn't Chrom (which is stupid in itself unless you give it to the original Marth due to anyone else either being unable to use it or already having one), making it impossible to retrieve it anymore unless that person happens to be there.
** A specific method occurs in ''[[VideoGame/FireEmblemJugdral Fire Emblem: Genealogy of the Holy War]]'' - if [[spoiler:Cuan and Ethlin]] survive Trabant's ambush in Chapter 5 and if you let them conquer Phinora Castle, which is your next step at that point... Congratulations, now Phinora is an allied castle and you can't conquer it back, meaning that you're stuck in Yied Desert with no way to advance further in the game (since your progress is very linear, conquering a castle disables the InvisibleWall guarding the next one). Though you have to try [[http://serenesforest.net/genealogy-of-the-holy-war/miscellaneous/hints-and-secrets/cuan-and-ethlins-survival/ really, really, REALLY hard]] to pull the whole thing off.
* In ''Franchise/TheElderScrolls'', it's possible to quicksave right next to enemies about to kill you.
** In ''[[VideoGame/TheElderScrollsIIIMorrowind Morrowind]]'', it's possible to kill key characters such as, Caius Cosades. The game helpfully warns you when you've made it unwinnable like this. Sometimes this could be UnwinnableByMistake (for some characters, there's no indication that they're important), but for others, it's glaringly obvious that killing them will break the plot.
*** Of course, the devs think of everything, and there's a back way into killing Dagoth Ur that only requires leaving Yagrum Bagarn alive long enough to make you a jury rigged wraithguard.
** The Heart of Lorkhan is supposed to be destroyed with scripted weapons and is protected from other damage by instantly regenerating health and a large (but finite) health pool. Drinking a glitched strength potion and hitting it with a normal weapon can oneshot it without triggering the endgame scripts, making the game unwinnable.
** In ''[[VideoGame/TheElderScrollsIVOblivion Oblivion]]'', there's a cage in Fort Carmala that contains some rats. The handle to open the cage is right outside it, and you can very easily close the gate and rush in before it actually drops. Seeing as there's no way to open it from the inside, you're now stuck. In the event you're on a console version and you don't have a previous save to load from (you can autosave by waiting), then the entire character is worthless.
** The "Blood of the Divines" quest in ''Oblivion'' requires you to sacrifice a Daedric artifact. Fifteen exist in the game, and it is possible to obtain (and potentially lose) fourteen of them before starting this quest, but one of them (the Oghma Infinium) can't be obtained before "Blood of the Divines" is started. This means that players who have lost the first fourteen artifacts still can get hold of an artifact to sacrifice. However, there is nothing stopping an especially insane player from destroying the first fourteen artifacts, obtaining the Oghma Infinium (knowing, by this point, that it is needed for the sacrifice) and destroying it as well, rendering the main questline unwinnable.
** Sea walking in ''Oblivion'' also works on lava and you can rest to recover on it. This means that you can freely travel across lava. The problem comes in if you're crazy enough to go so far out of the map that you fall off the world and didn't save before hand. Good luck swimming up from the bottom of an ocean of lava.
** In ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'', it is also possible to quicksave while jumping off a mountain. Patches have disabled quicksaving when you're airborne or on a steep slope, but nothing's stopping you from quicksaving when low on health, with no healing items and a dragon's breath/fireball heading your way with no time to block or dodge.
** Also in Skyrim, if you are fleeing dangerous foes with whom you're in combat, you may flee through a door that's an area boundary but be taking continuous damage from poison; the damage does not stop while you are transitioning areas, and your autosave on the other side may be of a dead character, leaving you endlessly reloading a dead character unless you interrupt the death animation by loading an earlier save.
** Also in Skyrim, there seem to be a number of "prisons" and similar places where you can get permanently locked into with seemingly no way out. One example is in Brinewater Grotto. There are three lever, two of them open and close doors leading to a barred room with some fish inside. By standing close to the gate, pulling the lever and activating the shout Slow Time, you can run in before it shuts. However, there doesn't seem to be any way out, other than loading a save. You can't seem to reach the level, there's nothing that can kill you to respawn outside, you can't Fast Travel, so unless someone can confirm, you're stuck forever.
** Skyrim's "The Wolf Queen Awakened" quest can only be triggered by leveling up after completing "The Man Who Cried Wolf". Prior to patch 1.9, you could make this quest unobtainable by reaching the max level. [[AbsurdlyHighLevelCap Reaching max level requires you to max out all skills.]] After patch 1.9, you could reset skills and gain more levels, but the problem wasn't ''quite'' solved -- the game crashes if you have more than 255 unspent perk points, effectively capping your level at 510. The probability of doing this by accident is zero.
** In Skyrim, major [=NPCs=], such as important quest givers, are flagged as essential by the system; if you attack them until they reach zero health, they will simply fall into a crouch until they recover. However, the "essential" flag won't stop you from, say, ruining your chances of ever completing a major questline by using the [[LethalJokeItem Wabbajack]] to turn a crucial quest giver into a sweetroll and eat them.
* ''VideoGame/RoboWarrior''. Using up all your life rings before you [[SuperDrowningSkills traverse a water area]] is a pretty stupid thing to do.
* ''Franchise/TombRaider'':
** In ''VideoGame/TombRaiderIII'', it is possible to jump into the small water tunnel in the empty third water tank in Thames Wharf before you fill the tank. The jump is rather challenging and requires careful timing. Doing this will lead you to the edifice, but the edifice's exit will be too high for Lara to reach, thus preventing her from finishing the level. The empty tank has no ladder and is too deep to get out of. This can be corrected by reloading, but if you save after making the jump, Lara will be stuck in the edifice forever unless you restart the level.
** In most of the classic ''Tomb Raider'' games, health packs are in limited supply. Some levels will force you take unavoidable damage. If you use up all your health kits, it's entirely possible to be stuck in a dead game where you can't survive the damage thrown your way without healing. To counter this, most of the modern games in the franchise refills Lara's health to full if you reload your last checkpoint upon dying.
* ''VideoGame/KingsBounty'' has an area which can only be reached by flight, and which contains only a single treasure spot. If said treasure spot contains non-flying creatures, and you were to recruit them and then ditch your flying creatures, and you didn't have any Town Gate or Castle Gate spells, you would be stuck there forever.
* In ''VideoGame/LandsOfLore 2'', it is entirely possible to drop an absolutely vital item into a river and you'll never see it again. The third game makes this impossible.
* Early in ''VideoGame/ExitFate'', you can sell all your equipment and use all money you have now to buy consumables, then waste them, and you'll be permanently stuck in a town where you're required to rest at an inn, but don't have the money to do so. Many {{Role Playing Game}}s try to avoid the "You need to rest at an inn to advance the plot but you don't have the money for it" problem by either making the stay at the inn free just for that time or having someone else pay for it.
* In "Toys N The Hood", the first real stage of ''VideoGame/DynamiteHeaddy'', you have 2 platforms out of reach. Your goal is to pull one of them close to you with your detachable head so you can hop onto it. If you purposely stand as far away as possible, pull the platform to you, and run away immediately after, when the platform comes to you, it'll be too far away for you to reach the ledge or the other platform. You can't kill yourself either. [[http://www.youtube.com/watch?v=EXcm-96t87o Here]]'s a video demonstrating this.
* ''VideoGame/{{Portal}}'' and its sequel have certain rooms [[http://www.youtube.com/watch?v=AJGXN93CNq0 where you can trap yourself,]] making it impossible to continue. (In the Xbox Live port of the first Portal, there is even an achievement for trapping yourself so that [=GLaDOS=] had to help you escape.) That said, Valve found most of the possible ways to trap yourself, and added dialogue on your state as well as providing a way out (by lowering a wall or dispensing an extra cube, for example.) That said, they didn't find every possible trap, so some weird cube or portal manipulations may leave you [[http://www.youtube.com/watch?v=3u5mkYmD6zI permanently trapped.]] Another example would be piling cameras under the weighted companion cube to support it while it's partway on the button, going through the door where the button to open the incinerator is, and then shoot a portal to make the camera fall through and the cube come off the button, so the door closes and you're trapped.
** The room showcased in that second video also shows up in ''VideoGame/TheStanleyParable'' when following a certain path in the game, namely the Video Games path. You can get the cube stuck outside like in that video. Like [=GLaDOS=], The Narrator never helps you, but unlike [=GLaDOS=], [[DevelopersForesight you do get some humorous dialogue instead.]]
* ''VideoGame/AnUntitledStory''. If you miss the save point teleportation power the first time by avoiding the pit outside Skytown, then miss it a second time in Stonecastle by ''jumping over it on purpose'', and finally going down the upper branch of Farfall, you can end up stuck in a pit with a save point, unable to escape because you don't have the power
* In ''VideoGame/SilentHillDownpour'', you get the Forensic Flashlight in the Centennial Building. You can switch this out with a standard flashlight in the police station if you hadn't already grabbed it. Then, if you enter the orphanage, you are stuck with a large number of enemies that are invisible without the Forensic Flashlight's ultraviolet setting. Not technically unwinnable, but getting through is statistically impossible.
* ''VideoGame/FinalFantasyVI'':
** The game has an OptionalPartyMember named Shadow, a wandering ninja you can hire temporarily. At one point in the game, if you try to take him back to your main base in Narshe, he leaves at the front gate, before you're properly inside. It's also possible to bring a one-person party with him when you hire him; this one person can be Gau, who -- if you use him to fight in a special location called the Veldt -- can leave temporarily. Therefore, if you use Gau to recruit Shadow, then lose Gau in the Veldt, then take Shadow to Narshe, you can end up with a zero-person party and be unable to do anything. The insanity comes from the fact that you have to traverse most of the game world on foot, then run away from most battles (so Shadow doesn't decide he's earned his fee and leave) to pull this off.
** There is [[http://finalfantasy.wikia.com/wiki/Airship_glitch an obscure glitch]] that allows the player to end up with an airship at a stage of the game where this isn't supposed to be possible. Landing in the wrong spot can completely ruin the game's scripting. The glitch starts when you [[http://lparchive.org/Breaking-Final-Fantasy-VI/Update%2001/ play almost half of the game without saving, then deliberately die,]] which certainly explains why playtesters never caught it.
* ''VideoGame/FinalFantasyX2'': Once you pass a certain point in the story, all of the enemies in the world will have been elevated to at least mid levels. If you avoid as much experience as possible throughout the game while also skipping all side events, it is possible to reach a state in which even basic enemies are undefeatable.
* In ''VideoGame/TalesOfTheAbyss'', if you start the Mushroom Road sidequest before entering TheVeryDefinitelyFinalDungeon, Luke leaves the party to give place to Asch. You can then go all the way to the other end of Mushroom Road to get out to the world map (in a cliff where the Greater Flightstone is) and then use the world map glitch to get out of there without getting Luke back. This lets you play as Asch for as long as you want,[[note]]You can go back to Mushroom Road to get Luke back whenever you want, though[[/note]] and Asch replaces Luke in every scene (except for one needed to get Tear's InfinityPlusOneSword, which will not trigger). If you finish the game while using Asch, you will start the [[NewGamePlus next cycle]] ''without Luke''. Once you get to the tutorial battle, the game freezes because you don't have any character in your party. If you saved your clear data over your only file, [[{{Irony}} you are now stuck inside Duke Fabre's Manor forever]].
** The world map glitch by itself can be this. To use this glitch, you need to take the disc off the [=PS2=] while being on the world map, which will make the scenario disappear, and allows you to walk over the water, mountains, etc. You can then put the disc back and wait for a while for the scenario to come back. However, if you are over a unwalkable path (over the water, for example) when you do this, you get stuck and ''cannot even use the world map glitch to leave'', as you will be unable to move. It is possible to save the game whenever you want while being in the world map. If you save in this condition, you are stuck forever.
* In ''VideoGame/HalfLife1'', in the "Questionable Ethics" chapter, you can deliberately trap yourself in the rotating door near the end, by triggering the turning process and moving back, then entering the side part of the rotating door.
* ''VideoGame/HalfLife2'': It is possible to avoid picking up the crowbar at the beginning of the game and abuse the physics system to proceed until the Route Kanal chapter where a wall of boards is unbreakable without the crowbar and the player is gated out of being able to go back and retrieve the tool.
* Averted in ''VideoGame/{{Mabinogi}}'' as of frequent updates, as one of the devs caught on unwinnable situations, before the updates leading to the Free Bank, it was possible to put on a soon to lock Bank area on the [[{{BFS}} Brionac]] at the bank, forcing you to either wait for Nexon to give a free temporary service, or buy Premium Bank service to continue on a storyline if you haven't completed it already. A more intentionally way is to leave Brionac or the Avon feather in your VIP inventory when it is about to lock- until the two problems was averted from Nexon giving out Free Bank service and the ability to remove VIP inventory items.
* ''VideoGame/DarkSouls'':
** The Curse status ailment cuts your life bar in half every time you die from it, and before a patch it stacks up to 1/8 maximum health. If you were to get cursed repeatedly and not have any Purging Stones, you could easily get trapped. This could potentially qualify for UnwinnableByMistake, but what ''Dark Souls'' player with any common sense would allow him/herself to be ''repeatedly'' Cursed?
** You can get stuck during your first run through the Painted World of Ariamas by aggroing the area boss[[note]]She normally lets you leave without attacking, but will never forgive you if you hurt her. Try to leave while she's mad and you just die from the fall.[[/note]] and letting her kill you, then discard all of your weapons and armor. Normally, they'll sit where you left them waiting to be picked up again, but dying or quitting the game makes them disappear permanently. After that, you're left mostly defenseless with only a weak punch to fight with. Exactly one enemy in the area drops either a shield or a spear, both weak and available in the starting area of the game. Going in under-leveled and you won't have enough natural resistance, either. Since you can't warp out the first time you get there, you'll be easily killed in one hit by pretty much everything here, boss included. You can try CherryTapping the boss, but it will require both incredible luck AND skill. Your only other option is to power level your way out by killing the {{Mooks}} in the area, but even then you'll have some difficulty and you'll need to get to the AbsurdlyHighLevelCap.
* ''VideoGame/DarkSoulsII'': The Duke's Dear Freja is a giant, two-headed spider whose body is completely invincible. You can only deal damage by hitting her heads. If you do a large amount of damage to one head, it gets cut off her body. Normally this amount is large enough that you can't cut off both heads without killing her first, but if one were insane enough to use the Warmth pyromancy and ''deliberately heal the boss'' so they could cut off the other head, they would make the fight unwinnable for themselves.
* Fairly early into ''VideoGame/{{Xenogears}}'', there is a level where Fei goes by himself into a cave piloting his gear. There is a service robot he encounters, which the game gives you the option to fight and kill. This robot also sells you gear parts, which you'll probably need to survive the wave of boss battles ahead. If you save your game after killing the robot, then the upcoming battles are nearly impossible without a gameshark. And no, you can't just grind to obscene levels, that's not how Xenogears works.
* In ''VideoGame/{{Xenoblade}}'', one quest on the Fallen Arm spawns the Bright Wisp, which drops a key item. Unlike every other enemy that drops a key item, the Bright Wisp respawns, so you can obtain multiple copies of the key item. However, the key item is not needed for the quest, and this enemy's appearance is [[GuideDangIt not announced]]. The unwinnable part comes into play if you defeat the obscure Bright Wisp 100 times and loot 100 of these key items. The game will prompt you to discard an excess item (99 is the limit), but as it's a key item, it can't be discarded, and the game is stuck.
* In the ''VideoGame/Left4Dead'' series, survivor bots will attempt to go to you when you're incapacitated so you can be revived. Bots are also programmed to teleport near the player's location should the bot's path finding fail and get stuck. However, should the player go down in a place the bots cannot reach them, even if it's physically possible to get there, the bots will be confused and unable to reach the player, leaving them to bleed out. This can also happen if the player goes down in some place that you can physically reach out to help them up, but because the bot's path finding isn't programmed to go to that spot, you're boned.
* In ''VideoGame/CastlevaniaSymphonyOfTheNight'', you can make Richter slide out of the castle before the gate closes... with no way back inside.
* ''VideoGame/GoldenSun'':
** In an aversion, the devs added amusing cutscenes if you do something like navigate Morgall Forest without the Force Gem (getting you stuck in Altin) or give Piers the Lash Pebble before he leaves the party (getting you stuck outside Lunpa's house). The cutscenes fix the respective problems, leaving you free to continue.
** Played straight in Vault, where a woman gives you a bone every time you talk to her. You only need one (to give to a dog who shows you a secret dungeon), but it's possible to fill your inventory with undropable, unsellable, entirely useless bones.
* In ''[[VideoGame/{{X}} X3: Terran Conflict]]'', firing the [[BlindJump Unfocused Jumpdrive]] takes you to a randomly generated Unknown Sector. Firing it again takes you back to wherever you jumped from. Each firing costs a predetermined amount of Energy Cells; just in case you've used your very last to fire the unfocused jumpdrive, every Unknown Sector you spawn into has a crate of energy cells free for the taking. If you destroy that crate, however - which is almost impossible to do unintentionally - you're stuck there forever. Fortunately, the game being a mod-friendly PC exclusive means there's no situation that can't be gotten out of by cheating.
* ''VideoGame/{{Ultima}}'' allows plot-crucial elements to be [[PermanentlyMissableContent unobtainable]], overlapping with UnwinnableByDesign:
** Being unable to have a conversation with an NPC when the [=NPC's=] dialogue is necessary to continue or complete the game, by: killing the [=NPC=] while having no way to [[DeaderThanDead revive]] them, erasing them or their remains [[CessationOfExistence from existence]], or putting them in a state of permanent aggro when death and revival is not an option.
** In ''VideoGame/UltimaVI'', Glen the Mortician can turn any corpse in inventory into an urn, including the bodies of plot-critical [=NPCs=], leaving no possibility for resurrection.
** In ''VideoGame/UltimaVIIPartII'', the crematorium in Monitor can destroy anything, including quest items and bodies loaded with quest items.
** In ''VideoGame/UltimaVIII'', quest items and plot-critical [=NPCs=] are [[PermanentlyMissableContent lost]] when contacting water or lava. Items can be dropped in directly from inventory. [=NPCs=] can wander into a body of water. And both items and [=NPCs=] can be made to fall in or be knocked in through creative use of the physics engine, such as placing a series of steps and barriers near water, using throwing items like darts, or having too much fun with explosives.
* In ''VideoGame/{{Doom}}'' [=E3M9=] (Warrens), it is possible to lock yourself out of the first room by pressing the button to lower the first door in the level and then quickly running through the door before it closes. This will prevent you from beating the level.
* ''{{VideoGame/Insaniquarium}}'' has the [[http://insaniquarium.wikia.com/wiki/Tank_6_%28Glitch%29 Tank 6 Glitch,]] where one can access a sixth tank beyond the normal five. The trouble is, this tank is a DeadEndRoom; the only way to escape is to ''delete your game data'' and start completely anew. Let's hope you backed up your data before entering Tank 6, so you can restore it...
* In ''VideoGame/LuigisMansionDarkMoon'', it's very possible to lock yourself outside Treacherous Mansion by going to the Nautical Exhibit, putting an object on the switch when there are still ghosts in the area, then entering the door just as a ghost punches the object away. This leaves you stuck on a balcony with the only way out being to restart. Of course, you have to be really, really trying to pull this off, [[http://www.youtube.com/watch?v=MS71OKIJtf4 as shown here.]]
* In ''VideoGame/RecettearAnItemShopsTale'', you could theoretically squander all your money (for example, by repeatedly buying a bunch of crap from the market then selling it back at a loss immediately) the day before a payment is due and then save your game without keeping a backup save in another slot. This doesn't actually render your save file useless though, since a GameOver simply gives you the bad ending, then sends you into a NewGamePlus minus all your money and any rewards you would've gotten for beating the game.
* The SNES ''VideoGame/{{Shadowrun}}'' game has an early subversion: If you sell all your weapons before being sent to the caryards, an NPC hands you a gun that is weaker than any other gun in the game, can't be acquired any other way, and only exists to keep the player from getting stuck in the arena with no weapon. After getting back out, you can still sell all your weapons and armor, hire bodyguards and then run around accomplishing nothing until there's no money left.
* In ''VideoGame/StickRanger'', it is possible to sell all your weapons and then blow all your money, making it impossible to fight bosses to progress in the game or gain any new weapons.
* Right at the start of Stage 22 in the GameBoy game ''The WesternAnimation/BugsBunny Crazy Castle 2,'' you're seemingly forced to get the hammer and pick axe. You can't get very far without the hammer, and you'd be stuck at one part of the level without the pick axe. However, it actually is possible to get past the beginning part of the level without getting the pick axe, by getting the hammer, then breaking the rock at just the right moment that the enemy behind the rock is going the other way, then sneaking past that enemy. It's much more difficult than simply going the other direction and collecting the pick axe while doing so, and would probably never even occur to most players that it's even possible to sneak past the enemy here, and really, there's no reason to even try except for the sole reason of getting past the start of the level in a way you're not meant to, which leads to getting stuck in one part of the level, since you won't have that pick axe to climb out of an upcoming pit, and if you kill the enemy in that pit, you'll be forced to reset the game!
* ''VideoGame/AncientDomainsOfMystery'' has two bonus dungeons that only open at certain levels; the Pyramid and the Minotaur Maze. If you reach a certain level without completing them, they close up for good, rendering everything inside [[PermanentlyMissableContent unobtainable]]. It's possible to enter them, drop one of the [[PlotCoupon Chaos Orbs]], then leave. If you gain that level while the orb is inside, the orb is irretrievable, and you can't open the locks on D:48. This is nigh-impossible to do unintentionally. And in older versions of the game, if you became entangled in webs on [[SlippySlideyIceWorld D:49]], you would be completely incapable of breaking free, and would be trapped, slowly starving to death, one floor away from victory. There is no reason ever to use webs on D:49, since no monsters ever spawn there.
* In ''VideoGame/ShinMegamiTenseiIV'', you can get stuck at Ouji and Minami Senju before you get the GlobalAirship if you spend the 500 Macca to go there when you have less than 700 Macca total (as it only costs 200 for the return trip) and don't have the Scout Bonus or Fundraise apps or enough App Points to purchase one. Note that you can still buy your way out...[[BribingYourWayToVictory if you spend the ]]''[[BribingYourWayToVictory real-world]]'' [[BribingYourWayToVictory cash]] needed to get the DLC mission that can give you more App Points (unless you are in a region, or your 3DS's region is set as such, where the [=DLCs=] weren't greenlit for sale, like in South America. Which bounces back into this trope).
* In ''VideoGame/SensoryOverload'', enemies would sometimes come out of rooms that were locked to the player, but they could enter the room while the door was open, resulting in them being trapped when it closed.
* In ''VideoGame/RuneFactory'', save while poisoned and sealed with no food or recovery/healing items deep in a cave. We dare you.
** Later games rectify this by allowing the player to use teleport when sealed and having them, depending on the game, [[DeathIsASlapOnTheWrist wake up in the clinic or in their bed at 10am]] if they run out of HP (although [[AdamSmithHatesYourGuts you can kiss your life savings goodbye if the clinic revives you]]). Even in the Forest of Beginnings in ''VideoGame/RuneFactory4'', where you can't use teleport at all and running out of HP causes an instant game over, you can't save and get yourself stuck there.
* In the UsefulNotes/ZXSpectrum game ''Nonteraqueous'', you are a robotic "Seeker" who is powered by "Psyche" which you have to keep topped up by using "Psychers". Unfortunately, [[ColorCodedForYourConvenience some]] [[SchmuckBait Psychers]] contain decayed Psyche which will kill you instantly. Another way to refuel is that some rooms boost your Psyche when you enter, so you can repeatedly leave and re-enter such a room... but [[DevelopersForesight if you attempt to boost your charge beyond the maximum, you are told that you have overloaded and killed yourself that way]].
* ''VideoGame/{{Strife}}'', being an early FirstPersonShooter game with RPGElements and actual [[{{NPC}} NPCs]], had a few instances of this. The plot, while allowing for MultipleEndings, was rather easy to break. One notable example, in a lot of ButThouMust conversations, you can TakeAThirdOption by outright refusing to advance the plot, which has the added bonus of provoking the local acolytes/rebels/etc into swarming you. There's also a certain sidequest that's less UnwinnableByDesign and more this trope if you pick up on the hints that the person giving you that quest can't be trusted.
* ''VideoGame/ZooTycoon:'' If you spend too much of your money and don't have enough animals and/or things to sell to get some back, you can be put in a situation were you cannot buy more animals and things, and if you don't have enough animals because they all died or something, you cannot even slowly make more money because you won't get enough guests. The only solution other than restarting or loading a save file is to use a cheat code to make more money.
** This sort of situation, where you have no money and no way to make money, was what caused the original ''VideoGame/SimCity'' to add a lose condition. If you mess up too bad, you get a game over.
* ''VideoGame/WorldOfWarcraft'':
** Newly created characters begin the game with the Backpack, a 16 slot bag. You can acquire up to four additional bags and change those bags as you progress, but everyone is stuck with the Backpack, which cannot be removed or upgraded -- which gets annoying when endgame players have access to 30 slot bags and would really like that extra space. The dev team is aware of this, but have said in the past that one of the reasons keeping them from addressing it is that they're sure some damn fool would find a way to unequip all their bags at once and render themselves permanently incapable of ever picking anything up.
** In ''Legion'' a druid player revealed they were incapable of doing the quest required to gain the artifact weapon central to the new expansion. Why? They had managed to make themselves hated with the Cenarion Circle, ''the faction all druids belong to'', and so could not speak with any of the [=NPCs=]. They'd [=PvPed=] extensively in that zone and killed guards, destroying their reputation. Not entirely unwinnable as they could regrind the rep in a raid, but still impressive.
* ''[[{{VideoGame/StarcraftI}} Starcraft]]'' has one in the very first non-tutorial mission, "Wasteland". The mission objectives are 1) find Raynor and don't let him die 2) build a barracks 3) train 10 Marines. And yet, there's no failure trigger for being unable to train more Marines because there are no more minerals on the map. What pushes this up to Insanity is how wasteful you have to be with your minerals to reach this point: aside from the cluster of minerals near your base, there's another hidden mineral cluster that brings the total available to somewhere north of 5000 minerals. the barracks and 10 marines cost 650 minerals total, and you start with 5 marines that also count towards your total. But nothing's stopping you from blowing it all on way more Supply Depots than necessary. And such a failure trigger doesn't seem possible, given the limitations of the Trigger system shown in the ''Starcraft'' editor.
* In ''VideoGame/QuestForGloryI'', there's a tricky-but-possible way to die that involves resting in such places as the graveyard, which change between day and night, and staying until nightfall. When night falls, try to leave, and die of a "program bug".
* ''VideoGame/QuestForGloryII'':
** Early on, there's a [[HorseOfADifferentColor Saurus]] dealer right outside of [[CityOfAdventure Shapeir]]'s main gate, who aggressively tries to sell the player a Saurus. If you repeatedly leave and re-enter the screen, he'll get increasingly insistent that you buy a Saurus, eventually [[LeaningOnTheFourthWall Leaning On]] and later BreakingTheFourthWall. Push him enough and he'll get frustrated and leave, saying he was just trying to help you win the game, and the HaveANiceDeath screen reinforces it by saying that the Saurus you '''should''' have bought went to someone else and you can't progress any further in the game without it.
** Late in the game, after you reach Raseir, you need to become friends with Signor Ferrari in order to have a place to stay (if not, you will be arrested for vagrancy causing a GameOver). One segment requires you to pay five dinars to Ugarte for information. If you do not have the five dinars before you first meet him, Ferrari will kick you out and you lose the game. There is no way to get money after reaching Raseir (besides going into the desert and fighting brigands and Jackalmen). Considering that you should have dozens if not hundreds of dinars at this point from general questing and fighting (and from Poet Omar's rewards), and that there is almost nothing to spend your money on in Raseir[[note]]only water and coffee at the inn, the Djinn Slings will kill you[[/note]], it would be ''very'' hard but still possible to make the game unwinnable at this point.
* Very early in ''VideoGame/RuneScape'' before a method of banning rule breaking players had been programmed, there was an inescapable area called the black hole that rule breakers were trapped in. When players started breaking the rules to get sent to the black hole deliberately just to see what it was like, a method of entering and leaving the black hole was added. Some players then trapped themselves in the black hole by dropping the item that allowed them to leave (possibly due to being tricked into doing this by other players).
* The MMORPG ''VideoGame/TricksterOnline'' allows you to sell or accidentally drop (destroy) quest items necessary for the story quests. They cannot be replaced, petitioning a GM will only get the response 'well you shouldn't have done that'. Although the game is still playable about 1/2 of the single player content is forever lost and all the EXP those quests can give is gone.
* In ''VisualNovel/ALittleLilyPrincess'' you have a choice of activities every week. Since you need enough points to unlock activities, you can also choose to skip the week, doing no activity, in order to build up more points for the next week. If you keep refusing to do any activities at all, eventually the story mode runs out of story, leaving you with just the event-activity-choice screen, over and over again. If you ''still'' refuse to play an activity and keep clicking "Skip Week" until a ''hundred weeks'' have passed, all the activities expire and you are locked into a loop where you can't do anything but click Skip Week. Forever.
* In ''VideoGame/TheLegendOfKyrandia'', Brynn asks to see your grandfather's letter when you meet her in the Temple of Kyrandia. If you burn the letter in the temple brazier instead of giving it to her, you'll be unable to progress.
* In ''[[VideoGame/BubbleBobble Bubble Bobble Plus]]'', the UsefulNotes/WiiWare remake of Bubble Bobble, while playing Classic mode, if you get an EXTEND on Round 99, something incredibly specific and up to luck, one can skip the final level (Round 100), and go to [[MinusWorld Rounds 101-104]]. Rounds 101-103 are the three secret bonus rooms, and Round 104 is the EXTEND cutscene's room. Dying once in Rounds 101-103 skips to the next round, but death in Round 104 has no effect. There's no way to attack the Super Drunk, thusly trapping the player forever. Furthermore, if you use a continue after all players die, the Super Drunk doesn't even respawn.
* In ''Chaos'' on the UsefulNotes/ZXSpectrum, a wizard's summoned creatures can't use close-quarters attacks on friendly units. But the developer forgot to do the same for ranged attacks. This means a situation can arise where a wizard kills their last opponent (which would normally end the game with a victory) but then turns their ranged units on their own wizard and knocks themself out of the game, too. With no players now left, the game plays out its remaining turns as a series of empty screens, and finally declares a draw.
* ''VideoGame/ArcanumOfSteamworksAndMagickObscura'' really [[DevelopersForesight tries to avert unwinnability]], and if nothing else, you can consult a guide and wander the map until you find the next location on your quest. However, at one point, you need to get to the Isle of Despair, which requires the aid of Captain Edward Teach. Kill the Captain, and you're permanently locked out of the Isle and the game cannot progress.
* ''VideoGame/BaldursGate''. During the Prologue, Gorion casts a number of Level 3 spells but autokills any enemy he targets with the spell once it is cast. Stay out of his line of sight and use spells like Cloudkill or Stinking Cloud to pacify him from a distance, then awaken him with offensive spells, arrows or melee. The best option possible is to bounce a lightning bolt off the stairs so it hits him multiple times. Killed Gorion, Candlekeep can't be left.
* In ''VideoGame/MightAndMagic IV'', people running around with no space in their inventory can lose the one unique weapon required to harm the FinalBoss. It is actually possible to get another copy of the weapon with a cheat code then again, you might be playing a translated version where the code was changed into something undocumented.

!!Non-Video Game Examples:


[[folder: Literature ]]

* In the short story "Touching Centauri" in Stephen Baxter's "Phase Space" anthology of sci-fi stories, scientists discover that the universe they can observe is actually a highly sophisticated simulation, which is expanding its scope at roughly the same rate that humanity advances. So they do something the simulation designers never expected: concentrate nearly all of the resources of the human race into sending a high-powered laser to Alpha Centauri, which arrives beyond the horizon of the simulation faster than humanity would reasonably be expected to get there. As a result, the simulation starts collapsing, all of space overlapping with alternate timelines and possibilities as the effect draws closer to Earth, when it is then effectively game over.


[[folder: Tabletop Games ]]

* Creator/TakaraTomy thought of ''nearly'' everything when they made a licensed CollectibleCardGame based on ''VideoGame/InazumaEleven''. Every card has a "BCP" number in the corner, which is used for several things including tiebreakers: in case of a tie for action precedence, each player flips over the next card in their deck and higher BCP wins out. If both have the same BCP, repeat until the tie is resolved. All cards drawn are discarded ''after'' the tie is resolved. If one player runs out of cards, they shuffle their discard pile and start drawing cards from there. If their discard pile ''and'' their deck are both empty, they automatically lose. Now, if both players made their decks solely out of cards all with the exact same BCP value and they hit a tie while having the same total number of cards in their deck + discard pile, the game would go into a recursive loop until both players run out of cards, ending the match in a double loss.
* In TabletopGame/{{Chess}}, underpromotion allows for this. If a player underpromotes to a knight or a bishop in a king and pawn vs. king endgame, at which point promoting to a queen would have been [[https://en.wikipedia.org/wiki/Checkmate#King_and_queen practically]] an InstantWinCondition, the game is immediately unwinnable (ends in a draw), because there are no possible moves to checkmate the king.
** For that matter, if one really wants to, there is technically nothing stopping a player from [[StupidSacrifice deliberately sacrificing all of their pieces for no advantage]], though the opponent may well RageQuit over one's obvious contemptuosity.
* In TabletopGame/{{Clue}}, an incorrect accusation of Mr. Boddy's killer, the weapon used and the location means the player who did so instantly loses. If this happens to every player except one, the last one standing must narrow down the rest of the evidence to avoid this.


[[folder: Web Comics ]]

* ''{{Webcomic/Homestuck}}'':
** Players determine the form of the final boss using "kernelsprites". Whatever you put into it forms part of the boss's final form that you have to face. One player (thanks to a couple of less-than-benevolent players from another session) stick an ''omnipotent being'' into the kernelsprite, thus making the final boss nigh-on-unkillable.
** Another group of players didn't put ''anything'' into the kernelsprites. While this stopped the enemies and final boss from gaining any special powers, this [[NoFinalBossForYou prevents the Reckoning, and thus the final boss fight, from occurring]]. This makes the session doomed to continue in stalemate for eternity.
** Two siblings had planned on playing the game with only two people rather than the larger groups it was made to be played by (to be fair, they didn't really have anyone else to play it with). This would have (barely) worked, until one of the two killed the other before the game began and then tried to play alone. This resulted in a game so severely different that it could barely be called the same game (but it appears that the game ''was'' designed to address this possibility).
** One group prototyped a kernelsprite with an EldritchAbomination. Subverted, in that they still managed to win.


[[folder: Web Games ]]

* In [[https://garfield.com/games/scary-scavenger-hunt Garfield's Scary Scavenger Hunt,]] if you've already picked up every available donut box and inventory item, but neglected to pick up the cheese in the TV room AND your scare meter is over 90%, it's game over. Trying to get the cheese will spring a trap that puts your scare meter over 100%, and Garfield will run out of the house in terror. But you have to be playing ''really'' stupidly to trigger this - the cheese is one of the first items you see, and you're unlikely to get your scare meter that high unless you're a complete beginner or just messing around.