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s&box is a modern game engine, built on Valve's Source 2
A lightweight, modular and versatile mod loader for Minecraft Bedrock
RetroArch is a frontend for emulators, game engines and media players.
Real Time Strategy game engine supporting early Westwood classics
Fast, user-friendly cross-platform custom launcher for Minecraft
A game engine powered by python and panda3d
Tool to statically recompile N64 games into native executables
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
A lightweight game server framework implemented with Actor Model
A dead simple 2D game engine for Go
Zig game engine & graphics toolkit
Botcraft is a cross-platform C++ library to create bots
Gideros Release version
A game engine with an emphasis on real-time cutting-edge solutions
2D JavaScript Physics Engine
Game engine supporting many 3D/2D formats and graphic effects
RTS game with the theme of Strategy by Design
Descent 3 by Outrage Entertainment
A modern, cross-platform Quake game engine based on FitzQuake.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Futuristic Luau for every universe
A free transportation simulator game
Odamex is a free, cross-platform, modern client-server Doom engine