The flexible game engine
OBS Linux Vulkan/OpenGL game capture
Noob-proof (N)3DS Custom Firmware
Classic overhead run-and-gun game
A free/open source client and automation tool for Ragnarok Online
An OpenGL RTS game engine written in C
The ioquake3 community effort to continue supporting/developing id's
Flipper Zero firmware source code
Simple and flexible programming language for applications development
Multi-Joint dynamics with Contact. A general purpose physics simulator
Cooperative multiplayer graphical RPG and adventure game
Star Wars style retro game for Linux
A modern, cross-platform Quake game engine based on FitzQuake.
RTS game with the theme of Strategy by Design
A standalone UQM mod made to enhance gameplay and visuals
Digitale Modellbahnsteuerung
SDL based generic 2D game engine
0 A.D. is a free, open-source, cross-platform real-time strategy game.