[[quoteright:270:http://static.tvtropes.org/pmwiki/pub/images/worldofgoo-littlemiss-allcleared-halfres.png]]

-->''The millions of Goo Balls who live in the beautiful World of Goo don't know that they are in a game, or that they are extremely delicious.''

''[[http://www.worldofgoo.com/ World of Goo]]'' is an indie PuzzleGame by, essentially, [[http://2dboy.com/ two guys]], with some help. In it, the player constructs intricate structures from intelligent globs of goo, with the deceptively simple goal of leading the remaining free members of the swarm to each level's exit pipe. Deceptive, because this two-dimensional world is [[MalevolentArchitecture contrived to put as many highly varied obstacles into your path as possible]].

Spun off from the simpler ''Tower of Goo'' student project, the gameplay is pushed into an increasing variety of directions by the long string of newfound species of goo, each possessing unique properties to experiment with. The slowly building story is told through a deliberately primitive, child-like art style in the rare cutscenes, and more profusely through [[StoryBreadcrumbs the text of helpful signs]] posted in each level by Your Friend The Mysterious And Enigmatic Sign Painter.

The whole of Chapter 1 is in a [[http://www.worldofgoo.com/dl2.php?lk=demo free demo]] for Windows/Mac/Linux, and the full version can be bought and downloaded straight from the website, or through Steam or Big Fish Games. There's also a Wii version available through [=WiiWare=]. A bonus sixth chapter on the Moon was originally planned for retail, but may or may not ever get made.

Do not confuse with WordOfGod, even though it may apply.
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!!Tropes that apply to this PuzzleGame:

* TwentyPercentMoreAwesome: Tower of Goo Memorial Park and Recreation Center: Now 20% more infinite in all directions.
* AlertnessBlink: The '''!''' of newly-awakened gooballs.
* AliceAndBob: "Alice and Bob and the Third Party"
* ArcWords: 'MOM'
** "The Last of the Goo Balls"
* ArtShift: Chapter 4.
* BeastAndBeauty: "Beauty and the Electric Tentacle"
* BottomlessPits: Present in some levels.
* ButThouMust: In Chapter 4, you are asked for confirmation on undeleting all of MOM's junk mail. The two choices are "ok" and "yes."
** Also, in the same chapter, if you try to get MOM to erase the cookies concerning your personal data, she accepts, then informs you that they may in fact not have been entirely deleted, and... you're back to the beginning of the discussion tree.
* ChekhovsGun: At the end of the first world you send a tower of goo with eyeball balloons into the sky. They later appear at the end in space.
* ColorCodedCharacters: It would be difficult to tell the different species of goo apart without this.
* CosmeticAward: The very-appropriately named "OCD"[[note]]Obsessive Completion Distinction[[/note]] goals of each level.
* CrueltyIsTheOnlyOption: Not only the fate of the poor Matchstick Goo balls, but levels like "Genetic Sorting Machine" and "Red Carpet"...
* CursedWithAwesome: "Grape Vine Virus": the benevolent infection
* CutScene
* CyberSpace: "Information Superhighway," an entire chapter dedicated to programming jokes and NewMediaTropes
* DialogueTree: In very unique, spoiler-y circumstances. Given a fourth-wall-bending LampshadeHanging.
* DemBones: One species of goo confuses the Sign Painter as to whether they're "alive... or dead. Probably polite to pretend we don't notice." These skull-shaped goo are the only species invulnerable to the ubiquitous SpikesOfDoom.
* DoesThisRemindYouOfAnything: The goo is a black, viscous, gooey substance which is crucial to the economy [[note]]...extracted from various distant regions of the world through pipes and made into lots of consumer products by a large, faceless corporation. The subtlety -- it burns! (Guess what else burns.)[[/note]], kind of like some other black, viscous, gooey substance in real life!
** And also MOM, an [[Website/{{Google}} uber-powerful search engine with suspicious policies regarding privacy and user's personal data.]]
** Along with a guy in the iPad version who says that there used to be a great market, only it fell apart because everything dropped to 99 cents. Hmm, [[{{Macintosh}} who does that remind us of?]]
* EtherealChoir: One of the songs if you meet MOM and going to World of Goo corporation grounds after chapter IV.
* EvilVersusEvil: A sinister, polluting, extinction-causing MegaCorp versus a crazed, identity-stealing spambot.
* FunWithAcronyms: "Obsessive Completion Distinction" achievements, a.k.a. OCD.
* GainaxEnding: Every chapter.
* GenreSavvy: The goo balls often mention game-related facts, according to the sign pianter and the narrator.
* GettingCrapPastTheRadar: The level where the female goo balls are introduced. Notice the hairy, feminine leg-like structures... [[{{Squick}} now look between them]]
** [[{{Squick}} Also, note that the goo balls are trying to get out from between the legs...]]
* TheGhost: The Sign Painter
* InTheStyleOf:
** The scenery is straight from the mind of Creator/TimBurton and/or Creator/DrSeuss.
** The music is pure Creator/DannyElfman.
* LoadingScreen: While loading, the level's title is displayed with a piece of text just long enough for you to read in the brief waiting period. It varies from being descriptive to simply amusing.
** And on startup, the game offers a series of such technical status updates as [-'distilling beauty...'-], [-' debating games as art '-] and [-'[[PerfectlyCromulentWord embiggening]] prototypes...'-]
* MalevolentArchitecture: Given an early LampshadeHanging by the Sign Painter in the fourth level
* MegaCorp: The bleak, faceless World Of Goo Corporation.
* MissionControlIsOffItsMeds: The Sign Painter is a mixture of being insane and, by the end of the game, misleading.
* MundaneMadeAwesome: "Mail Received!"
* NewMediaAreEvil: PlayedForLaughs
* OurTimeTravelIsDifferent: Time bugs.
* RealIsBrown: Parodied -- after updating the "graphics card" in Chapter 4, most of the subsequent levels contain nothing but grays, browns, and bloom.
* PoweredByAForsakenChild: Wildly theorized by the Sign Painter, regarding the world's power source.
* PuzzlePan
* SceneryPorn: Can venture into this in some levels.
* SequelHook
* SequenceBreaking: You don't have to burn the man to complete the level. Or sacrifice any of the goo balls in Red Carpet level. Since it's a physics-based game, people have discovered tricks to break some physics in his game to allow players to get way above OCD requirements of some levels.
* {{Shareware}}: The PC demo allows you to play through the entirety of the first chapter with no restrictions imposed, but you will need to actually buy the game to continue on. The Wii demo doesn't count as shareware since you cannot save and it automatically terminates at a certain point.
* ShoutOut
** For one, the PuzzleBoss flash game ''VideoGame/YouHaveToBurnTheRope'' is sent up with the sever-the-overhead-support level "You Have To Explode The Head"
** The introductory text for the fourth level contains a shout-out to ''Armadillo Run'', another indie puzzle game with a similar premise. This borders on a LampshadeHanging: the sign in that same level mentions an armadillo for no apparent reason.
** There are also shout-outs to non-games: for instance, the above-mentioned DialogueTree includes the classic GloryDays exchange from the film ''Film/SunsetBoulevard''.
** In one puzzle, you have to start your web from a frog's mouth. Sign Painter suggests that the frog really wanted to [[{{VideoGame/Zuma}} shoot balls from his mouth in his own puzzle game.]]
** A sign in "Ode to the Bridge-Builder" references the song "O Superman" by Music/LaurieAnderson. Also Bridge Builder is one of the Chroniclogic's physics-based construction series. ODE is actually a physics engine ''World Of Goo'' is largely based on.
** One of the loading messages is [[ElectronicArts "challenging everything."]]
** There's a level called [[Franchise/WinnieThePooh Blustery Day]].
* SinisterSurveillance
* SpeakingSimlish
* SpikesOfDoom
* StickyBomb: A species of goo.
* StoryBreadcrumbs: The messages left for you by The Sign Painter and... someone else...
** The Sign Painter also leaves you a message in the PC version's ''config file.''
* TakeThat: All done in the game's very quirky style of humor. Consumerism, marketing, search engines, ubiquitous surveillance, cultural standards of beauty, they all take some flak.
** WordOfGod claims that World Of Goo Corporation is a metaphor for game publishers they had to deal with. Since they're ex-EA employees, it's probably not hard to tell which ones. [[http://www.gamasutra.com/php-bin/news_index.php?story=18223]]
** OCD pretty much mocks the player for trying so hard to get the achievement.
* TimedMission: "Super Fuse Challenge Time"
* Trope2000: The Freedom Scraper 3000 in "Welcoming Unit".
* VideogameCrueltyPotential: Aside from the [[CrueltyIsTheOnlyOption necessary sacrifices]], there's many times when it's easier to sacrifice a number of goo balls rather than trying to save them all.
** VideogameCaringPotential: Swinging back around, of course, with the practice of playing a level specifically to save as many Goo balls as possible. By using lots of tricks, you can save much much more of them than intended.
* WhamEpisode: "Product Launcher"
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