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''[[http://secondlife.com Second Life]]'' is a {{VirtualWorld|s}}. It's like a sandbox [[MassivelyMultiplayerOnlineRolePlayingGame MMORPG]] heavy on user customization, or a world-sim meets 3D-chat-program, or [[TheInternetIsForPorn the Internet's]] largest [[VideoGamePerversityPotential alternative-digi-porn-emporium]]. No matter which of the three definitions you prefer, it's generally agreed upon that ''Second Life'' is not a game or even a work of fiction so much as it is a simulation of {{real life}} made much more interesting.

There is no story-line and no goals, instead putting an emphasis on chatroom-like conversations with friends and buying virtual property. It's the sort of environment where a hacker attack involves self-replicating spheres spreading across the biosphere, and banned users find themselves in an endless corn-field with only a TV showing a promo for Linden Lab, the company behind ''Second Life''. [[{{Music/TalkingHeads}} And you may find yourself living in a shotgun shack.]] You may find yourself standing beneath a tree on which money grows. You may find yourself pole-dancing while what can only be described as a sentient light-show stuffs cash into your G-string. You may ask yourself, "Why am I wearing this beautiful house?". You may ask yourself, "Why am I running through the junkyard in a swimsuit?".

It may be the dawn of TheMetaverse in RealLife. Also a bit [[UncannyValley uncanny-valleyish]], especially when it comes to the default "human" models, and the user-created ones can be disturbing in a very sexy way. Or sexy in a very disturbing way.

On the technical side, a user can create nearly any item within the simulation, using the built-in editor to manipulate "prims" simple 3D shapes that can be combined however you want, "sculpted prims" were introduced later and allow the importing of 3D models from an external program, via the same method textures could be uploaded before. An in-world scripting system that allows a large amount of control over prims, which nearly everything in-world is made of (except for the ground and basic player models). Streaming audio and video are another feature, with the latter acting as a special texture for a prim's surface, which some people have used to make [[http://blogs.forrester.com/erica_driver/08-01-25-blended_real_life_second_life_meeting_shows_promise blended meetings]] with video ''from'' the simulation projected into the same room that's being streamed. (There was also a cordoned-off area for teens that was merged with the adult grid in early 2011.)

''VideoGame/OpenSimulator'' is intended to be an open-source alternative.
!!Tropes include:

* ActuallyPrettyFunny: Many a griefer was kicked out of a sim (or banned) by a mod who admitted their behaviour was actually somewhat amusing.
* AfterTheEnd: Many Community Combat System RP sims are set in a post-apocalyptic world with vampires, werewolves, demons, angels, and other assorted races running around.
* AnInteriorDesignerIsYou: You also get to play architect.
* BarbieDollAnatomy: The default skins for avatars are non-detailed, although custom skins and umm... attachments are readily available.
* BerserkButton: Calling Second Life a game is this to some residents.
* BribingYourWayToVictory: Averted. While players are expected to buy things with real money, there's no real "progress" to be made, making the victory part of the trope moot. It's best to think about spending money on the game as DLC to enhance the user's experience if nothing else. In some cases, if you know what you're doing and have the skills to do it, you can actually ''make'' money on Second Life and convert it to real life money. Some people managed to make an actual living this way, which caused Linden Labs to change several policies regarding virtual money so that there's no hyperinflation. However it's not easy to make money off Second Life and very few people will actually make a ton of real life money this way, so don't think you will be able to quit your day job to make money from Second Life.
** At the game's peak of real world exposure in 2007-08, out of about 4 million accounts, 117 people made $25,000 or more. Just to show how long your odds are.
* CollectibleCardGame: Second Life has its own, [[http://www.logos-cards.com/home Logos]] and yes you can play it [[WebVideo/YuGiOhTheAbridgedSeries on motorcycles!]]
* ControllableHelplessness: [[http://www.erestraint.com/realrestraint/ RLV]] was designed with pretty much this in mind. Also crosses over with [[VideogamePerversityPotential Videogame Perversity Potential]]/[[VideogameCrueltyPotential Videogame Cruelty Potential]] in that whoever holds the key to your restraints chooses exactly how long you stay helpless. [[note]] This is averted by the fact that you can simply turn the scripts that control your helplesness off, however. [[/note]]
* {{Cosplay}}: It's very easy to find avatar sets or parts that can let you dress up as your favorite fictional character.
* DigitalAvatar: While having avatars is pretty universal to [=MMO=] settings, Second Life is renowned for the lengths and variety to which avatars can be crafted and customized, given its Metaverse inspirations of which the tropes share [[Literature/SnowCrash the same codifier]].
* FlashStep : You can buy a device that teleports you several feet in the direction you want to go, allows you to go through walls and effectively fly in areas where you are forbidden to fly. (Just flash step ''upwards.'')
* UsefulNotes/FurryFandom: A sizable chunk of the fanbase. Some are attracted by the degree of customization possible with avatars, some got into the fandom through the game, and a vocal minority are interested in what the game is famous for.
* GameBreakingBug: There are a lot of things that can cause your viewer to chug or simply crash, outside of the typical bugs and glitches that Linden Labs introduces with each update. Having too many objects clustered in a sim can cause viewers to have drops in framerate, and people/objects that use too many scripts or scripts that eat up a lot of memory can also cause the same result. Griefers tend to abuse objects and scripts to force sims to crash, while others may not even know that their objects or scripts are eating up resources. Because the coding of Second Life is heavily outdated, and Linden Labs themselves have been extremely slow to resolve outstanding issues, expect many bugs and oddities to remain for a long time.
* {{Gainaxing}}: the 2.6.3 update implements this as an option.
** Specifically, it makes the parts of your avatar that are normally jiggly in real life jiggle on your avatar. It just so happens to include this trope but also bellies and other places that accumulate noticeably jiggly fat.
** If one sets the sliders to ridiculous settings, breasts and other body parts can spontaneously jiggle for several seconds without stopping.
* GenderBender: Your choice of gender only affects which avatar you're wearing when you log in the first time. After that, you can easily switch to a different body of whatever gender you prefer as often as you want. You start with several of both genders.
* {{Griefer}}: Second Life is heavenly for these guys. Ranging from the mildly offensive (text spam or wearing offensive attachments, both which can be easily remedied by muting the user) to the heavily disruptive (constantly rezzing prims or using several laggy scripts) which can hamper the sim's performance, making everyone suffer (which require a land owner or moderator to kick and ban the offenders).
** And just as worse in privately owned areas such as ones used for role-playing and are managed by one person or a small team of moderators; if the owner or the moderators are not online when a griefer is running wild, things will get out of control fast. Private areas that show if owners or moderators are online or not will attract griefers if they see nobody is on to stop them.
** Griefers always seem to have all the time in the world to put effort into into whatever they're doing. So fight less, avoid more. They're more likely to leave when they have no one to grief. Unless it's a main account - which can be reported.
** The same level of annoyance applies to the polar opposite of griefers, that call themselves "Anti-Griefers", though it varies. Some anti-griefers are actually helpful, letting the ones in actual power handle things themselves while giving the newbies tips to help them out. Some, such as the Justice League Unlimited, annoy sim/land owners that are trying to resolve the problem themselves through simple, yet effective, mute/eject/ban commands, by taking charge and doing things that egg griefers on and make them grief the sim more, such as demanding that they leave, using their own scripted tools to try and repel the griefer, and in general antagonizing him/her to do more damage, causing an even bigger mess for the sim's owner to clean up.
** Amusingly enough, there is a sim where you are actually ''encouraged'' to try and crash the sim. If you do manage to crash it, you're asked to explain how you did it to the people running the sim, and then they can give other advice to people running their own sims to prepare against griefers.
** There are also groups that are invited by sim owners to help keep griefers away. Using objects built by players in the game, owners can delegate their admin powers to what are effectively teams of on call moderators who assist multiple sims.
** [[EvenEvilHasStandards Even Griefers have Standards]]: Some griefers may have fun doing things like [[RefugeInAudacity flooding a sim up with Tetris blocks or sending silly images flying around the sim]], but draw the line at actually ''crashing'' the sim or putting up shock images.
* GuideDangIt: Linden Scripting Language. Want to create an item that does something other than just sit there? Have you ever written code before? If "yes" to the first and "no" to the second, have fun looking up documentation for hours to get up to speed.
** However, once you get acquainted with the syntax and layout of LSL (which is child's play compared to the big boy programming languages like C and Java), there's not one, but two wikis that list every function, event, operator, constant and statement in the language, [[TheDevTeamThinksOfEverything complete with all their uses, caveats and issues]]. It can be a little outdated (often articles have been untouched since 2008), but it's a damn sight easier to navigate than the average [[DoorStopper computer science textbook]].
* HideYourChildren: While you are allowed in general to make your avatar be a child, all sims with adult content prohibit child avatars. This is due to the terms of service from Linden Labs prohibiting any form of sex or violence against child avatars.
* ImpossiblyCoolClothes: Expect to [[BribingYourWayToVictory pay out the nose]] or [[GuideDangIt take a crash-course in 3D modeling]] to acquire or make them, though. [[note]] Relatvately speaking, realistically. Even the most expensive clothing in the in game currency will set you back 5 bucks or so USD. [[/note]]
* ImpossiblyCoolWeapon: Yeah, like you're not going to find this in a [[BuffySpeak 3D-chatty-thingy]] where people can make their own stuff.
* InvisibleWall: Every sim has invisible barriers at the edges and trying to go beyond them gets your avatar pushed back. You can also create your own invisible wall by making a simple rectangle object and making the textures invisible.

* JustEatHim: Oh, this can happen. Particularly in Erebus.
* TheInternetIsForPorn: See RuleThirtyFour below.
* LoadsAndLoadsOfLoading: Going places in Second Life is like watching the mind erasure scenes from ''[[Film/EternalSunshineOfTheSpotlessMind Eternal Sunshine]]'' at half speed in reverse.
* MassiveMultiplayerCrossover: Avatars exist for various characters from various fictional universes. [[Franchise/{{Transformers}} Optimus Prime]], Franchise/SonicTheHedgehog, [[VideoGame/DevilMayCry Dante]], [[WesternAnimation/MyLittlePonyFriendshipIsMagic Twilight Sparkle]], Franchise/{{Superman}}, [[Franchise/DragonBall Son Goku]]... [[LoadsAndLoadsOfCharacters To name a few]].
* MiniGame: Tringo, and a few other player-created games.
** The breedable animals, if you have enough land and breedables (you can get horses, dogs, cats, chickens, corn and other vegetables) you essentially have an expy of ''VideoGame/{{Farmville}}''.
** The breedable animals are actually against Second Life's TOS as they lag and crash sims. They're classified as griefer items if you share residence with others in the same sim but different parcels.
** There are even [=MMOs=] built within SL. There are some open source stat tracking engines such as DCS meant to allow others to develop their own [=MMOs=] without having to figure out all the coding and game mechanics themselves. Eventually, even Linden Labs got in on the act and now offers its own MMO in world for premium membership.
* TheMoralSubstitute: The Teen Grid, a ClosedCircle created to keep younger players out of the more ... interesting regions of the Main Grid, is a half-example. Eventually, it was shut down and age verification implemented on the main grid for the more adult areas. [
* ThisLoserIsYou: Unlike most escapist "games", it is genuinely possible to utterly fail to accomplish your goals in Second Life, which can be pretty devastating for somebody who was escaping from a bad life situation anyway.
* NonLethalKO: In sims where the health feature is enabled, having your health reduced to zero just teleports you back to your home point.
* OhCrap: Pretty much everyone's reaction when there's a forced sim restart by Linden Labs. Anyone who doesn't leave the sim before the timer expires will be forced to log out. Needless to say, this can get annoying if you're in the middle of role playing or are building something.
* OldMediaPlayingCatchUp: For a few years, Second Life was a media darling and [[RippedFromTheHeadlines a headline commonly ripped from]]. Dozens of corporations set up in-game buildings and facilities. Then it eventually got around that [[TheInternetIsForPorn nearly everybody uses it for sex]]...
* PowderKegCrowd: A "[[http://nwn.blogs.com/nwn/2007/01/stronger_than_h.html virtual riot]]" managed to break out in SL in 2007, between the French National Front and anti-racism activists. This also crossed over into UncannyValley territory, and the novelty value of the weapons used, such as ''[[ExplodingSheep pig grenades]]'', cranked it UpToEleven.
* PowerPerversionPotential: You have the power to create almost ''anything'' you want in this world. So what do you do? Why, use it to have sex or send giant penises storming through the G-rated sims!
** To the point where they created a separate continent just for that (at least, for the more explicitly sexual sims.) As a result, outside of that continent there are more and more creations that are not based on some kind of sex.
* QuicksandBox: Second Life is a big, confusing place. This tends to turn away many new users, who wander around their welcome area of choice, try out the build tools, and get bored fairly quickly.
* RefugeInAudacity: Where to begin with this?
* RolePlayingGame: Entire regions can be dedicated to just this.
* RuleThirtyFour: Obviously.
* RummageSaleReject: It is very easy to dress this way. Tidbits of outfits are cheaper than whole outfits, so it is easy to mismatch items around, quickly becoming a cluttered mess. You can attach something like fifty items to your avatar, and those fifty items can have hundreds of pieces (although this is frowned upon). The avatar creator Bare@Rose is a big culprit for this style of dress.
* SceneryPorn: Some sims are very artistically detailed forimmersion bliss. Of course, if you take the trope name literally, look three lines up.
* ShoutOut: The three servers which run the grid of sims are named [[Film/{{Zoolander}} Magnum, Le Tigre and Blue Steel]].
** Many of the avatar surnames that were formerly available are also shout-outs or references. Examples include: [[Film/{{DrStrangelove}} Strangelove]], [[Literature/{{GossipGirl}} GossipGirl]], and [[Series/{{Blackadder}} Blackadder]]
* SlippySlideyIceWorld: One user is actually creating an attachment that "enables" this. The endless possibilities that can be done with scripting...
* {{Steampunk}}: A sizable community within Second Life, concentrated in a loose confederation of sims called the Steamlands (Caledon, New Babbage, Winterfell, Steelhead, Steeltopia, and probably others I'm forgetting).
* SuperNotDrowningSkills: Water serves nothing more as an aesthetic appeal and have no affect on your avatar's performance other than possibly a change of animations.
* TheFashionista: This is what you get in a Virtual World that is more popular than one expects amongst Generation X women, where Avatars are TheAgeless if you want them to be, the RuleOfGlamorous is always in force, and you can engage in BribingYourWayToVictory with ImpossiblyCoolClothes and get as close to an UnlimitedWardrobe as your Real-life cash can take you. In Second Life, TheFashionista is often part of TheBeautifulElite
* UnlimitedWardrobe: Inventory is not limited, so BribingYourWayToVictory with lots of Second Life fashion can lead to this.
* VideoGameCrueltyPotential: The things that you can do with Restrained Love Viewer...
** And let's not forget those who find love in SL, only to have their emotions purposefully played with by others because "it's only a game."
* VideoGamePerversityPotential: With the vast freedom of the customization options in this game, was it inevitable that half of it would be porn, hardcore fetishes that can't be done in real life, or furry porn?
* VirtualPaperDoll: The sheer variety of clothing options, along with skin, hair, complete furry avatars, and other clothing/body related items available runs into the millions.
* {{Wallbonking}}: ''Avatars'' wallbonking can be a side effect of lag. Sometimes there's a delay between your avatar's actions and what you're seeing, and sometimes there's a delay in the commands your avatar is responding to, either way you're guaranteed to unintentionally walk into a wall at one point.
* WideOpenSandbox: Kinda. Sorta. It's not a sandbox game in the usual sense, since it's not a traditional ''game'', more of a mediated environment, partially under the control of its denizen-creators.
** Put another way, there are vast areas that can be explored, but almost as many areas that are restricted to authorized avatars and owners. And some of the more, shall we say, serious citizens can get ''very'' touchy around intruders.
* WrestlerInAllOfUs: VWE, Virtual Wrestling Entertainment, which is broadcast on one of Second Life's television channels as well.