Best Open Source C Games

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Browse free open source C Games and projects below. Use the toggles on the left to filter open source C Games by OS, license, language, programming language, and project status.

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1

Stellarium

A planetarium software that shows a 3D simulation of the night sky

Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.

217 Reviews

Downloads: 2,695 This Week

Last Update: 2025-08-18
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2

0 A.D.

0 A.D. is a free, open-source, cross-platform real-time strategy game.

0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess.

92 Reviews

Downloads: 143 This Week

Last Update: 2026-02-18
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3

Open Sonic

Open Sonic is a free open-source game based on the "Sonic the Hedgehog" universe. It introduces a different style of gameplay called cooperative play, in which it's possible to control 3 characters simultaneously. It works on Windows, Linux and MacOSX

13 Reviews

Downloads: 69 This Week

Last Update: 2018-04-27
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4

GNU Robbo

This is ATARI XE/XL game ported to Linux. This game was very popular and was one of the greatest ATARI games. You can see similarities to sokoban, but this game has more features like shooting, unfriendly animals.... SDL, SDL_image, SDL_mixer and SDL_ttf

Downloads: 17 This Week

Last Update: 2015-08-27
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5

pSmunli

pSmunli is another opensource Physics SiMUlatioN LIbrary in 3D environment. To perform more realistic simulation on your application(such as game and scientific simulation). It supports OpenGL and DirectX.

Downloads: 0 This Week

Last Update: 2013-03-19
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