Command & Conquer: Remastered Collection
The source code to VVVVVV
Free game engine for development of desktop, mobile, and web games
Open game and rendering engine packed into a JavaScript framework
Ct.js is a desktop game engine that makes learning programming fun
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
3D Game engine with editor
Stride (formerly Xenko), a free and open-source cross-platform C# game
An elegant Go board and SGF editor for a more civilized age
The flexible game engine
The Tiny JavaScript Game Engine That Can!
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Lumina is a visual game creation environment for building 3D games.
World Class Leader Board Editor.
Portable UCI- and XBoard-compatible chess engines.
W3LuaEnv is a free tool for Warcraft III modders
Scripts and tools for building and testing chess engines.
Descent 3 by Outrage Entertainment
Dune II strategy and city building on Arrakis
Retro style, multi-platform soccer game
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Europa Universalis 4 save game editor
Modern Windows-optimized fork of the FCEUX NES/Famicom emulator.
OgreWin3D