This is a list of different open-source video games and commercial video games open-source remakes.

• [Action games](#action-gam

• Hypersomnia - Competitive top-down shooter with extreme dynamics and pixely nostalgia. Comes with a built-in map Editor. [source]

2000 and Red Alert rebuild for the Modern Era. [source]

• Permafrost Engine - An OpenGL 3.3 Real Time Strategy game engine written in C. [source]

• Widelands - A free, open source real-time strategy game. [source]

• Zero-K - RTS game with physical projectiles, smart units and a powerful UI. [source] [engine] [engine source]

• Cataclysm: Dark Days Ahead - A turn-based survival game set in a post-apocalyptic world. [source]

• Dungeon Crawl Stone Soup - An open source roguelike adventure through dungeons filled with dangerous monsters in a quest to find the mystifyingly fabulous Orb of Zot. [source]

• NetHack - Single player dungeon exploration game. [source]

• Meritous - An action-adventure dungeon crawl game. [source]

• Pixel Dungeon - Traditional roguelike game with pixel-art graphics and simple interface. [source] The game also has a lot of forks that add their own features, difficulty scaling like Shattered PD, Summoning PD.

• Ambermoon.net - A full C# rewrite of Ambermoon. [source]

• Daggerfall Unity - An open source recreation of Daggerfall in the Unity engine. [source]

• DevilutionX - A port of Diablo and Hellfire that strives to make it simple to run the game while providing engine improvements, bugfixes, and some optional quality of life features. [source]

• Exult - A project to recreate Ultima VII for modern operating systems. [source]

• Fallout Community Edition - A fully working re-implementation of Fallout. [source]

• Fallout 2 Community Edition - A fully working re-implementation of Fallout 2. [source]

• Kandria - An action RPG made in Common Lisp. [source] [engine source]

• Naev - A 2d action/rpg space game that combines elements from the action, rpg and simulation genres. [source]

• Oolite - An open-world space opera. [source]

• OpenEnroth - Might and Magic VI-VIII engine remake using original data & code. [source]

• OpenMW - A free, open source, and modern engine which re-implements and extends the 2002 Gamebryo engine for the open-world role-playing game The Elder Scrolls III: Morrowind. [source]