EverybodyLives as a SelfImposedChallenge. This is where you try to make sure there are absolutely minimized, if any, casualties.

Different from a NoDeathRun in that games where this challenge is invoked have the Player controlling multiple characters at the same time, and not with the same degree of control as in a {{Platformer}} or a FirstPersonShooter. Usually invoked in {{RPG}}s and Strategy games. As the aforementioned reduced degree of control makes a NoDamageRun technically impossible, this becomes the ClosestThingWeGot

This [[WhatMeasureIsAMook may extend to]] [[MercyRewarded enemies]] for a PacifistRun.

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!!Examples:
* Most ''Franchise/FireEmblem'' players follow this trope by default, since [[FinalDeath losing a unit means they're gone for good]].
** Starting around ''VideoGame/FireEmblemElibe'' and carrying on into the likes of ''VideoGame/FireEmblemTellius'', the enemies actually try to focus not just on their victory, [[SpitefulAI but on your loss.]] Apparently the devs realized that most players would RageQuit at the loss of a single character, and as a result, multiple enemies would start streaming towards one character and kill them, ensuring you, as the player, lose, as you will have to reset.
** The Player Avatar of ''VideoGame/FireEmblemAwakening'' has this attitude by default. The loss of one unit is too many. Virion lampshades this when he wins a strategy game with heavy loses. If he were leading an actual army, the morale loss would have him quickly demoted.
* ''{{Pikmin}}'': Sometimes it's not just for bragging rights, but because some players can't bear to [[VideoGameCaringPotential let any of the eponymous adorable alien critters die.]]
* ''NintendoWars'', particularly ''VideoGame/BattalionWars'' but it can apply somewhat to the turn-based games themselves.
* Some players of ''{{Pokemon}}'' will regard the virtual monsters humanely and attempt to keep them from [[NonLethalKO fainting]] at all costs. After the first generation this is rewarded by increasing your Pokemon's friendship with you (or at least letting it level up; letting it faint will prevent it from gaining experience) which affects the power of its Return move if it's learned it, and in some cases allows it to evolve into a more powerful form.
** Also, some [=NPCs=] will let you know your Pokémon's feelings towards you depending on how you treated them. Some will even give you rewards for keeping your friends well.
** There's also the Nuzlocke Challenge, in which the player is punished greatly if any of his party members ever faints. The Nuzlock Challenge is a sort of self imposed "hard mode" for a Pokémon game. In it there are rules about how often you may capture Pokémon, though the specifics can vary from player to player. What doesn't vary is that any Pokémon that is knocked out is considered "dead" and can never be used again.
*** Some variations allow you to use an HM only once. If the Pokémon you taught it too dies, you can never use it again.
*** Another very common variant rule is that your Starter Pokémon is sort of like the main character in an RPG. It must always be in your party, and if it "dies" it's Game Over.
* In ''Return to Castle Wolfenstein'', killing ''any'' civilians during the course of the game will result in a NonStandardGameOver. It's quite easy to avoid killing them, however, unless you have a hair trigger.
* ''MetroidPrime 3'' has you run a gauntlet of Space Pirates, with marines to protect. If they all survive you get an extra reward.
* Trivially easy to do in ''FinalFantasyTactics'', since you have three turns to save your allies from being LostForever.
** That's if you're going for a No-Crystallize run. A No-KO run might be a bit harder.
* ''Lemmings'', where you can try to save 100% every level - even when you only need 5%.
** A select few levels (exactly how many depends on which version you're playing) are impossible to save 100% on.
** Lemmings 2: The Tribes is built on the idea of saving your lemmings, as each level you only get as many as you saved on the previous level. Only the Classic and Polar tribes require you to lose any lemmings, meaning this is ''almost'' possible.
* ''{{Overlord}} II'' sort-of has this as the 'Domination' run-through, where you have to completely enslave a pair of cities... if you accidentally kill even a SINGLE citizen, you cannot achieve 100% Domination.
** Everyone else? Kill. Them. ALL.
** A better example in both games is trying to keep all your minions alive. Considering their status as highly expendable PlayerMooks, this is harder than it sounds.
* The ''point'' of the Hero equivalent to Chaos Runs in CityOfHeroes. Surprisingly, this can sometimes end up being necessary for villains.
** Also, you can set task forces and flashback arcs to attempt a no-casualties run. Having a team member be defeated will not cause it to fail, but succeeding at some of the harder ones with the "no defeats" and "no temporary powers" restrictions in place will earn you and your teammates "Master of X Task Force" badges.
* ''KnightsInTheNightmare'' can attract this. Same with 100% recruitment.
** The two pretty much have to go together--every time your undead allies use their weapons, they come a little closer to fading from existence, and the standard solution is to sacrifice one ally to rejuvenate another. The alternative is to have a constant stream of new recruits and leave the old ones just ''barely'' clinging to existence.
* Some of the more recent SonicTheHedgehog games have missions such as "Don't injure the townspeople," and "Don't break anything."
* ''Dungeons & Dragons: Dragonshard'', a real-time strategy game, accounted for this by giving you a "good commander" bonus for minimal casualties in a mission.
* ''DeadRising''. There's an achievement; "Saint", for those who save almost all of the characters. To get the maximum number of survivors, you have to ignore most of the plot, to avoid PlotlineDeath. But you can follow the plot and still get just enough for the achievement.
* Theoretically possible in ''{{X-COM}}'', although considering the ridiculously high early-game (and mid-game, and end-game) casualty rate, this is extraordinarily difficult even on Beginner, and flat-out impossible on any difficulty at or above Normal, unless you're willing to do a lot of SaveScumming. Bear in mind that in this game, weak allies can be actively ''harmful'' to your side, especially once the aliens start using mind control.
** Much more possible in ''XComEnemyUnknown'', especially on Normal or Easy, as long as you use good tactics and know how the aliens will react for the most part. On Classic and Impossible, however, the enemy AI is unchained and will not only target weak or exposed characters, but gang up on them and even force them into vulnerability, making a no casualty run incredibly difficult.
* ''Franchise/MetalGear'' allows you do this with enemies by using non-lethal weapon and even awards you for doing so, requiring you to do so to get the highest rank possible. It's possible to play through The Twin Snakes, 2, 3 and 4 with only a single kill throughout the whole saga: [[spoiler: [[TearJerker The Boss]]]].
** Though this one is somewhat debatable, since even though you're taking down bosses via nonlethal means, they still ultimately die for the sake of plot.
* ''MetalSlug'' invites this of players, since rescued prisoners are wiped from the record when you lose a life. This is ''[[NintendoHard extremely]]'' [[OneHitPointWonder hard to do]], but videos exist of this being achieved in several of the games. By general agreement, Metal Slugs are not counted as casualities if they get blown up.
* This is a recognised challenge in the ''{{Oddworld}}'' games, where rescuing absolutely everyone usually nets you the best ending possible. Also, KILLING everyone gets you an extra-bad ending. In the first 3 games, this means saving all your fellow Mudokens/Fuzzles. In StrangersWrath, this means capturing all the bosses alive, and not killing any enemies that you don't have to. The only reward is extra money, or, later in the game, extra ammo.
* ''VideoGame/InTheHunt'' gives the player a special ending if the game is completed in one credit... [[DownerEnding Your submarine is shown in the wreckage of the enemy submarines, all destroyed along with the enemy base]].
* The ''{{Halo}}'' series allows for this, but because of the [[PunyEarthlings general squishiness]] of your Marine allies (and later Elite and Grunt buddies) it can get ''very'' hard. To add to this, some levels allow you to pick up a steady supply of reinforcements who build up and fight alongside you, moving with you through the levels, giving you a very visible reminder of both how [[VideoGameCaringPotential well you're doing]] and [[PlayerPunch all of your failures.]]
* The [[NoOneGetsLeftBehind No One Left Behind]] achievement in ''VideoGame/MassEffect2'' is for keeping everyone alive during the final mission.
** There are several missions in the original, including Feros, one of the main story missions, that give you more paragon points depending on how many civilians are alive at the end of the mission.
* ''DawnOfWar 2'' rewards you with extra experience and compaign points for keeping your squad leaders from being incapacitated. Their retinues, though? Meh, it's Warhammer 40K, what'd you expect?
* ''WorldOfWarcraft'' had achievements to get your raid through Naxxramas and kill all the bosses with no one hitting 0 Hit Points. If even one raid member died, the challenge could only be taken up again the next week after the reset because the casualty would be recorded.
* You wouldn't expect this in a strategy game, but ''HeroesOfMightAndMagic IV'' has one faction, Order, that can reasonably pull this off (at least in terms of protecting itself) by recruiting entirely ranged and spellcasting units and cutting down everything before it gets close. A certain amount of attrition is expected, so by avoiding that attrition one can make one's army unreasonably powerful, killing any enemy stack in a single attack. (Nature can do this too, but it's a lot harder, and Death in particular is completely incapable of it, since the player is expected to simply replenish the losses through reviving both sides' dead.)
* The main ''VideoGame/ZoneOfTheEnders'' games feature missions where the player is supposed to protect buildings with civilians and/or allied soldiers in obsolete mecha. One particular battle in the second game involves trying to protect 20 of these suits while fighting hundreds of enemies across a large battlefield. The only way for the main character to feel good about the outcome is to save every single one of them.
* The RTS game ''Blitzkrieg'' inspires this for the player's core units, which are selectable tanks & artillery that gain veterancy and accompany the player as he progresses through the game.
* ''TabletopGame/{{Shadowrun}}'' on the SNES offers a completely pointless challenge: The two women runners the player can encounter also happen to be the only runners with any relevance to the plot, and may be made into permanent party members. The challenge then becomes to keep both of their squishy spellcaster asses alive for the rest of the game.
* In ''VideoGame/TheLordOfTheRingsOnline'', the Tier 2 Challenge for Saruman's fight involves defeating him without anyone reaching zero morale, and within 30 minutes, or else everyone instantly dies.
* In the TacticsOgre PSP remake, the title "Concord King Unbloodied" is awarded to players who avoid ever losing an ally in battle, though in TacticsOgre it's even easier than in FinalFantasyTactics, as the player not only has a three-count until FinalDeath, but reviving downed party members is also much easier (since the "item" command is automatically equipped and doesn't have to be leveled up to use a revive item) and the player can always opt to rewind time by as many as fifty turns if they discover that they won't be able to save a party member in time.
* GlobalAgenda gives bonuses for having less than 4-6 casualties, depending on the mission. Team size can be up to 4 or 10 people, depending on the mission.
* In ''LightNovel/TheLegendaryMoonlightSculptor'', a VRMMORPG, the main character Weed's main focus in several battles is preserving as many lives of his NPC comrades as possible, where normally most players are unconcerned of the well being of the ''ArtificialIntelligence'' controlled NPC's... [[spoiler: Weed is concerned because of a little known fact: every NPC life that lives through a quest results in extra EXP as well as a little extra reputation points for the NPC's associated faction.]]
* ''VideoGame/FTLFasterThanLight'' awards you with an achievement for reaching the final sector with no crew lost so far, titled "No {{Redshirt}}s Here!"
* If you reach the FinalBoss of ''The VideoGame/HouseOfTheDead'' or its sequel with every single civilian successfully rescued, you'll be treated to a bonus room with point and health items before fighting said boss. In ''III'', the condition is instead successfully rescuing the other player (though neither player character can actually die due to a failed rescue), and in ''4'', you need a rank of A or higher on every prior chapter.
* This is necessary to obtain an achievement/trophy in ''VideoGame/DragonAgeII'': It requires that none of your party members fall in battle for a single year in Kirkwall (which would count as approximately a third of the game).
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