[[caption-width-right:256:Rejoice with your survival.]]


''Hydrophobia'' is an Episodic Xbox Live Arcade Exclusive title made by Dark Energy Digital. Set TwentyMinutesInTheFuture, it follows the story of Kate Wilson, a young woman who lives and works as an engineer on a massive ship called ''Queen of the World'', which acts as a floating city. During the celebration for the ship's 10-year anniversary, a group of terrorists called the Malthusians attack the ship, taking control of the ship's engines and killing the workers. The attack also has the side-effect of flooding many of the compartments in the ship.

Kate (with the help of [[MissionControl Scoot]] via radio) must make it off A-deck alive while fighting off the armed terrorists and saving her workmates.

Touted as an example of "episodic gaming" ($12 for three levels with great graphics plus the Challenge Rooms), ''Hydrophobia'' is actually an experiment in taking WreakingHavok UpToEleven. The theme is ''water''--water flowing, flooding and drowning. Your initial weapon is a "sonic pistol"--a stun gun granted surprising properties in the flooding environments of the ship's lower decks. It has infinite ammo, and will stun mooks for several seconds, knock small objects around and shatter glass. However, it also has a ChargedAttack that causes an impressive, albeit small explosion. These make headshots lethal--but fired into water, it will send loose objects--including mooks-- [[BlownAcrossTheRoom flying]]. Lethal ammo is available, but is actually unnecessary, as every environment has NoOSHACompliance and thereby things that will kill mooks if fired upon.

The game was hyped massively before release, being touted as having production values of a full-priced commercially released game. The critics [[HypeBacklash (metaphorically) crucified]] it upon release. In response, the developers released a patch (known as ''Hydrophobia Pure'') that fixed most of the issues (except the voice acting, which understandably you can't simply "tweak" like gameplay issues), and dropped the price by 400 MS points.

In another response, the developers released ''Hydrophobia Prophecy'', a [[VideoGameRemake remake]] of the game, on UsefulNotes/{{Steam}} and the UsefulNotes/PlayStationNetwork. It took ''Hydrophobia Pure'' and improved it even further in just about every area: visuals, level design, narrative, gameplay, audio, etc. (a full list can be found [[http://www.hydrophobia-game.com/features.php here]]).

The story is expanded on, as is Kate's "[[MakingASplash waterbending]]'--the Malthusians attacked the Queen of the World in order to seize {{Nanomachines}} intended to purify water on a massive scale(which would produce enough resources to make their philosophy obsolete), intending to turn them into a DepopulationBomb. Kate interrupts them in the act, resulting in a FreakLabAccident that eventually allows her to manipulate water with a gesture.

Plans for a sequel were made, but with the closure of Dark Energy Digital, it currently seems unlikely.

!!Game contains examples of the following tropes;
* ActionGirl: Kate.
* ActionSurvivor: Although she's a fitness enthusiast, Kate's an engineer, not a soldier, and she's clearly out of her depth and very disturbed when dealing with dead bodies, explosions, and lunatics with automatic weapons. She still manages to survive and save the day, though.
* AFriendInNeed: Scoot insists on staying to help Kate at the risk of his own life, despite Kate repeatedly insisting that Scoot go and save himself.
* ArcWords: Save the World - Kill Yourself
* AscendedExtra: Mila Krass. She was promoted from a minor character who was only mentioned a few times in the original to the BigBad and appears in cutscenes in ''Prophecy''.
* ApocalypticLog: Pretty much all of the "Documents" you can find lying around are some flavor of Log.
* BerserkButton: Of a sort. The final boss needs line of sight confirmation to begin firing its main weapons. Hide for long enough, and it will just pitch grenades ''everywhere'', thus ensuring that if it could not see you before, it probably will when the grenades blast you out from behind whatever pillar you were using as cover.
* CliffHanger: In the Prophecy remake. [[spoiler: Kate has killed Mila, and (perhaps) saved the ship. But Scoot is still missing, and there's no telling what will happen to Kate now that she's given herself the nanobot antidote.]]
* CosmicDeadline: The game has NoEnding? It doesn't have a middle either. They started work and ran out of money.
** ''Hydrophobia Prophecy'' gave the game a beginning, a middle and an end, although the end still suffers from thus trope a bit and is topped off with a CliffHanger.
* CrapsackWorld: Due to overpopulation, which has exhausted most of the planet's resources.
* DeadpanSnarker: Scoot.
* DrowningPit: The ''entire game''.
* EleventhHourSuperpower: You don't get control over water until near the end of the game, enough time to drown about 10 or so mooks on your way to the boss.
* FaceRevealingTurn: When Kate attempts to speak to Officer Yates, who is sitting in a computer chair, he doesn't answer. She turns the chair... and jumps back, shrieking, as his scorched corpse tumbles to the floor.
* GreyGoo: A variant. The Malthusians want to re-purpose salt water purification nanites so that they purify ''any'' water. That includes the water in humans. This would rather quickly put an end to the overpopulation problem, and a few of their goons show off the effects when a canister breaks on them.
* GuideDangIt: The Deep Breath medal. Get the hidden collectible in the middle of the flooded elevator shaft without coming back up for air. Sounds simple, right? Except in order to trigger it, you actually have to go past the shaft, trigger the cutscene that gives you the gun, then go back for it, essentially ignoring the entire purpose of the medal (you're presumably supposed to swim from the locked elevator to the collectible then to the top of the shaft in one breath, which is doable but a lot harder).
* [[TheCallsAreComingFromInsideTheHouse The Hack is Coming from Inside the Ship]]
* HazardousWater: Becomes MurderWater in the Challenge Room when Kate is controlling it.
* HollywoodHacking: Just match up the frequencies and you're in.
* InformedFlaw: Kate's afraid of water, but swims like a pro. [[spoiler: Could be related to her dead sister, Jen.]]
* LeftHanging: Most if not all the plot points raised by the storyline, thanks to the game's rather abrupt NoEnding.
* MakingASplash: Kate's hydrokinetic abilities allow her to call up towers of water. These towers in turn can suck up objects and toss them, suck up mooks and drown them (or toss them), or disrupt the water around them to knock over mooks indirectly.
* MercyKill: There's a medal for heatshotting a soldier being electrocuted (before they die, obviously).
* MisanthropeSupreme: The BigBad is a terrorist organization that believes the one and only solution to problems caused by overpopulation is mass extermination of human life. Their slogan is ''Save the Planet, Kill Yourself.''
* NoEnding: Literally. The original game ends abruptly as Kate is going to save Scoot and runs into the Superintendent, who is packing heat and ready to help. Suddenly, a wave of water no higher than most you've already seen rushes onto the scene, and Kate and the Superintendent dive out of the way: you're expecting maybe a final stage where you must swim in pure water trying to find Scoot, but nope, sudden unexpected end credits. No closure for the plot, no information about what happens next, no clue for continuation just a very unexpectedly abrupt end despite the tons of questions the game has already raised.
** ''Hydrophobia Prophecy'' averts this. Kate never meets the Superintendent, and instead chases down the leader of the cult attacking the ship. There's a lot more content but then... The game ends with [[spoiler: Kate injecting herself with the antidote and then everything fades to black]].
* OohMeAccentsSlipping: Kate is all over the place. There's Scottish, English, Irish, American Southern, and American with no accent in the space of a few minutes.
** Scoot suffers from this at times, and very badly at that. [[WhyWeCantHaveNiceThings Is it really that hard to find people with genuine accents]]?
*** Theory: Every character except Mila is some flavor of [[CanadaEh Canadian.]]
*** Funnily enough the actress playing Kate is Irish.
*** When you realise she's Irish Mancunian Kate's accent becomes a lot clearer.
* RegeneratingHealth
* RoomFullOfCrazy: Check out the walls in various rooms through the MAVI. The ArcWords - 'Save the World, Kill Yourself' - are ''everywhere''. [[spoiler: And you can find quotes from Thomas Malthus at various points that way, too.]]
* ShootTheMoney: Notice how the trailer likes to show off the water physics?
* ShoutOut: When turning off the gas in Act 2, Scoot hums the 'puzzle solved' theme from Franchise/TheLegendOfZelda.
** He quotes ''Film/DieHard'' when Kate uses an air vent.
* StickyBomb: Comes in two varieties. Both varieties are shot from your pistol and detonate after 10 seconds or a manual trigger. Gel Rounds explode and set the its surroundings on fire while Energy Rounds emits electricity.
* StunGuns: The LP4 Sonic Pistol. That said...
** SwissArmyGun: What kind of gun the LP4 is depends on what ammo you load into it. Semi-automatic ammo makes it into your [[StandardFPSGuns standard]] [[{{Handguns}} FPS pistol]], rapid-fire ammo makes it a [[MoreDakka submachine gun]], explosive gel ammo makes it into a StickyBomb launcher, and energy ammo makes it a StickyBomb launcher that kills things with [[ShockAndAwe lighting.]]
* UnexpectedGameplayChange: Act 3. You've completely adapted to and come to enjoy underwater gunfights - and now you've got a high and dry mall full of psychos versus your shitty stun pistol. Better have saved some lethal ammo.
** And again in Act 3, once hydrokinesis is unlocked. Suddenly, the cover-based shooting you've been doing pales in comparison to water-based mook-throwing.
* VideogameCrueltyPotential: Let's see... Set people on fire, electrocute them, attach explosives to them, damage a wall behind them so they're crushed by a metal panel that is in turn being pushed forward by thousands of gallons of water, stun them while they're underwater so they drown, or just plain shoot them. And this doesn't cover what you can do with hydrokinesis.
** VideogameCaringPotential: There's a medal for putting your enemy out of his misery if he's being electrocuted.
* VillainHasAPoint: It is hard to argue with the core of the Malthusian ideology. Overpopulation is a serious problem, and the most effective solution is death on a massive scale.
* VoiceWithAnInternetConnection: Scoot.
* WhatHappenedToTheMouse: Can be applied to many things thanks to the oft-mentioned Cliffhanger.
* [[WhyDidItHaveToBeSnakes Why Did It Have to Be Water?]]: Kate suffers from [[ExactlyWhatItSaysOnTheTin hydrophobia]]... except that hydrophobia is actually a symptom of rabies where people refuse to drink since swallowing hurts too much. Fear of water is called ''aquaphobia''. But then, "Hydro" is a [[RuleOfCool cooler]] prefix than "aqua".
* WrenchWench: Kate.