A game engine powered by python and panda3d
A 2D rigid body physics engine for the web
Descent 3 by Outrage Entertainment
A game engine with an emphasis on real-time cutting-edge solutions
High performance UI layout library in C
Godot Minimal Theme
2D JavaScript Physics Engine
3D game engine/framework in C, with Luajit and Python bindings now
Zig game engine & graphics toolkit
GemRB is a portable open-source implementation of the Infinity Engine
Full featured MUD server with all the trimmings.
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Game engine supporting many 3D/2D formats and graphic effects
Old-school 2D game engine
Orx: Portable Game Engine
The multiplayer game engine
A game engine for console based text games
State Management and Multiplayer Networking for Turn-Based Games
A Tile-based Game Engine written in C# mimicing retro consoles.
Amazon Lumberyard is a free AAA game engine