''Xonotic'' is a [[FreewareGames free, open source]] multiplayer FirstPersonShooter for [[UsefulNotes/IBMPersonalComputer Windows]], [[UsefulNotes/{{UNIX}} Linux]] and UsefulNotes/AppleMacintosh released in 2010. It's a SpiritualSuccessor to ''VideoGame/{{Nexuiz}}''. Like its predecessor, it also runs on the ''Darkplaces'' GameEngine, a heavily modified fork of the [[VideoGame/QuakeI idTech1]] engine.

The game contains a whopping 16 gametypes to choose from (Deathmatch, Team Deathmatch, CaptureTheFlag, Domination, Key Hunt, Keepaway, Race, Freeze Tag, Last Man Standing, Nexball, Race CTS, Clan Arena and Invasion, Onslaught, One Flag CTF and Assault) and 25 playable maps, with 9 main weapons (and 16 weapons in total) which the players can use to frag their enemies.

The game can be downloaded from [[http://www.xonotic.org/ its official site]].

!Xonotic, as of version 0.8.1, shows examples of[[note]]Bear in mind, as a SpiritualSuccessor of VideoGame/{{Nexuiz}}, several of the tropes, especially regarding weapons, may apply here as well.[[/note]]:
* ArtificialStupidity: The game makes use of the waypoint system, like Nexuiz before it, which means that bots are still predictable and will get stuck in some unpathed areas. Thankfully, though, the AI has improved since Nexuiz.
* BatmanCanBreatheInSpace: Several maps take place at floating platforms (Xoylent) or facilities floating in space (G-23) where it's possible to fight outside of it. None of the characters sport anything resembling a space suit.
* BookEnds: Of sorts. [[spoiler:Stormkeep]] is both the second and the last level of the campaign.
%% * BoomHeadshot: It's possible to do this with both the Vortex and the Rifle. As expected, it has the accompanying announcement.
* BrutalBonusLevel: Remember [[spoiler:Level 17: Stormkeep in Laser Guided Missile mode from the 2.0 Ladder]] back in Nexuiz? It's back, with a vengeance, and [[spoiler:as the last challenge of the campaign]]. Have fun!
* CaptureTheFlag: The eponymous gametype.
%% Unlike other games, your teams' frag count also count towards your team's score. Obviously, the quickest way to rack up points is to capture the flag (25 points).
* ChargedAttack: The Laser can be charged for extra damage or higher jumps.
* {{Combos}}: The game encourages weapon comboing within its very mechanics, as the refire rate of weapons is longer than the weapon switching.
* ConvectionSchmonvection: There are several lava/magma/molten metal levels such as Stormkeep (a foundry) and Final Rage (a castle). There's also Fuse. You can pass near it and not take damage at all.
* DemotedToExtra: Only the Laser, Shotgun, Machinegun, Mortar, Electro, Crylink, Nex (now rechristened as Vortex), Hagar and Rocket Launcher (now the Devastator) remain in the main weapon roster. The rest of the weapons were demoted to "Toy" status, only accessible via the "New Toys" mutator: the Mine Layer, the HLAC, the Rifle, the T.A.G. Seeker, the Grappling Hook and the Port-O-Launch.
* DummiedOut: Assault is left out of the campaign.
* GottaCatchEmAll: The Key Hunt gametype involves collecting all of the other teams' keys in order to score points.
* GrapplingHookPistol: The Grappling Hook. Unlike other games, there's a limited amount of shots you can do, so you might want to restock when it respawns.
* GrenadeLauncher:
** The Mortar's secondary fire launches grenades.
** The Electro's secondary fire works the same as the Mortar, but launches instead small, bouncing energy balls which explode on contact with enemies (and Electro primary shots).
* HighAltitudeBattle: Dance takes place in a facility rising above the earth.
* HoldTheLine: The Invasion gametype pits you and the rest of the players (forming a single team) against monsters, and the objective is to resist wave after wave.
* InterfaceScrew: Unlike its predecessor, there's a slight damage blur whenever you're shot.
* LevelEditor: Same deal as with Nexuiz and plenty of other games running under modified idTech engines: NetRadiant can be used in order to create levels for the game.
* LightningGun: The Electro, of sorts, since it works more like the Shock Rifle than Quake's Lightning Gun.
* MeleeATrois: Like Nexuiz, the game features several gametypes where multiple teams can duke it out, such as Domination, Team Deathmatch and Key Hunt.
* NoPlotNoProblem
* NostalgiaLevel: A few levels made the cut from its Spiritual Predecessor, namely Runningman (plus the CTF version), Darkzone (a.k.a. [[VideoGame/QuakeI DM6]]), Final_rage, Stormkeep, Warfare and Xoylent (formerly Soylent). Final_rage and Stormkeep are even the first levels of the campaign.
* RocketJump: Using the Laser gun, one could reach new heights.
* SceneryPorn: Cutting out the crap turned out for the best. Several of the game's maps now sport beautiful visuals (even more than the already impressive ''Nexuiz''), helped by the fact that Darkplaces has seen a lot of new graphic innovations since this game was announced.
* SecondaryFire: Same deal as with Nexuiz, every weapon has two fire modes.
* ShotgunsAreJustBetter: The Shotgun. The Crylink is a slower but more damaging Shotgun, and projectiles can go through walls.
* ShoutOut:
** New towards the ''VideoGame/{{Unreal}}'' franchise:
*** Inside the mutator system, there's a Relic mutator which acts like its UT namesake, randomly placing some mutator-specific powerups which can give you different combat bonuses.
*** Keepaway is basically the Mutant gametype from ''VideoGame/UnrealTournament2004'' without the Bottom Feeder feature.
*** Nexball is a subversion of sorts: instead of being inspired by either [=UT2004's=] Bombing Run (or its inspiration, UT mod Fragball) it's instead inspired by ''VideoGame/UnrealTournament'' mod [[http://www.moddb.com/mods/soccer-tournament Soccer Tournament]].
* SniperRifle: The Vortex. There's also an Instagib-specific weapon, the Vaporizer.
* SpeedRun: The Race and Race (Complete The Stage) gametypes involve the player trying to finish the map under the specified timelimit. The main difference is that in Race you keep running until you beat the timeline, whereas CTS only gives you one chance to do so.
* SplashDamage: Several of the game's weapons do this. In fact, it's easier to mention which weapons don't cause this.
* VideoGameFlamethrowersSuck: Subverted, as it fires a fireball which hurts upon ''proximity'', and is, in this game, classified as a [[{{BFG}} Superweapon]].
* YourPrincessIsInAnotherCastle: The last match takes place in [[spoiler:Glowplant]]... or so you thought. It turns out that it's [[spoiler:Stormkeep, and in All Rockets mode, to boot]]. [[BrutalBonusLevel Have fun!]]