Original Xbox Emulator for Windows, macOS, and Linux
Roo Code (prev. Roo Cline) gives you a whole dev team of AI agents
Emscripten: An LLVM-to-WebAssembly Compiler
HLE 3DS emulator
RPG Maker 2000/2003 and EasyRPG games interpreter
Objeck is a modern object-oriented programming language
Open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri
Haskell game engine library for roguelike dungeon crawlers
A modern, cross-platform Quake game engine based on FitzQuake.
Graphics library (GRAPHICS.H) for C, C++, WebAssembly, and Python.
Cython-based Python bindings for dear imgui
Multi-format audio player with MIDI, playlists & visualization
3D modeler, 3D game maker, 3D demo maker
Emulator of the 8-bit computers Sharp MZ-800 / MZ-700
View64 is a image viewer for C64 images
Another attempt to do a remake of the famous Amiga shoot'em-up Apidya
An SDL2 based maze-game.
M-JPEG, RFC2435, RFC4175 and V4L2 playback libraries
Program for live 2d graphical representation of data streams
GSX functions library for CP/M (...and SDL2 with SDL2_gfx)
The Ruby 2D gem
This wants to be a placeholder for the port of Tux Paint to SDL2
3rd Party Video Games Developer: MetalManGames, titles of games
An authentic Rise of The Triad Dark War source port
A conservative source port of Wolfenstein 3-D