A complete 3-D game development suite written in Java
Moonlight port for Nintendo Switch
A game engine with an emphasis on real-time cutting-edge solutions
Compatibility tool for Steam Play based on Wine and other components
s&box is a modern game engine, built on Valve's Source 2
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Bots for the Half-Life mod Firearms 3.0 and Day of Defeat 1.3
Blind Chess using Taiwan rules
Multiplatform MIDI File Player for Linux, Windows, and macOS
A fast-paced free software rally racing game
ANSI terminal card patience.
A tank combat action game with retro style.
A 2D scrolling platform shooter, inspired by Duke Nukem 1
Add and Subtract game
A quiet hex-board puzzle. Enclose the white stone before it escapes.
Mech Station Beta - Tower Defense like Game
Let it snow in your browser
DRM remover of the SteamStub variants
Free Texas Holdem Poker game using HTML5, CSS and JavaScript
Download Arceus X Neo an upgraded version of Arceus X
KlayGE is a cross-platform open source game engine
3D-Accelerated open-source DOOM engine