A game engine powered by python and panda3d
A game engine with an emphasis on real-time cutting-edge solutions
Zig game engine & graphics toolkit
GemRB is a portable open-source implementation of the Infinity Engine
Game engine supporting many 3D/2D formats and graphic effects
3D game engine/framework in C, with Luajit and Python bindings now
Real Time Strategy game engine supporting early Westwood classics
Descent 3 by Outrage Entertainment
A dead simple 2D game engine for Go
Action RPG that's easy to mod
A 2D rigid body physics engine for the web
Godot game template and component-based framework
Godot Minimal Theme
lua dev plugin for unreal engine 4 or 5
2D JavaScript Physics Engine
High performance UI layout library in C
Orx: Portable Game Engine
An updated version of the classic "Basic Computer Games" book
Cooperative multiplayer graphical RPG and adventure game
A modern, cross-platform Quake game engine based on FitzQuake.
Arianne is an engine to develop multiplayer online games like Stendhal
Good-looking and addictive OpenSource games