Platforms
- Mac
- Windows
- Linux
- BSD



Games similar to Doom include Half-Life. It's paid, but Xonotic and AssaultCube are free. Other options are Quake, Fallout, GZDoom and Shadow Warrior (Reboot). First-Person Shooters like Doom are a crowded field, with more than 50 alternatives for Windows, Linux, Mac, Android and the web.



Tremulous is a free, open source game that blends a team based FPS with elements of an RTS. Players can choose from 2 unique races, aliens and humans. Players on both teams are able to build working structures in-game like an RTS.

Shadow Warrior Classic Redux is a remastering of the cult classic PC shooter featuring enhanced visuals and new expansion content.




Mafia is a series of action-adventure video games developed by 2K Czech (formerly Illusion Softworks) with the third installment by Hangar 13, and published by 2K Games.








The first Lost Planet game takes place in the year known in the game as T.C. -80 on the fictional planet of E.D.N. III. After the Earth's conditions become too hostile for humans due to war, global warming and pollution, a fictional interstellar megacorporation named...




Touhou Project is a Japanese vertically scrolling bullet hell [shooting](https://alternativeto.




Wrack: Exoverse is the follow-up to the 2014 first-person shooter Wrack. It was a very fast-paced, arcade-style game with heavy influences from classic shooters like Doom and Quake.

Jake2 is a Java 3D game engine. It is a port of the GPL’d Quake2 game engine from id Software. To use the Jake2 engine you need either the data files from the original game or from the demo version that is available for download from ftp://ftp.idsoftware.com.



First person shooter survival horror game. Alone in the middle of nowhere, find out what brought ruin to this abandoned ship and its inhuman inhabitants.




Digital Paint: Paintball 2 is a Paintball game that started out as a mod for quake 2 but then took on a life of its own as an open source fps game with a global player and clan management system.


