Ct.js is a desktop game engine that makes learning programming fun
JavaScript-based game engine designed to empower developers
Here we're trying to create the easiest open-source game engine.
A free and open-source Touhou Project fangame
RTSish Game Engine
Doom-based AI research platform for reinforcement learning
High performance UI layout library in C
Orx: Data-Driven Game Engine
ChessMD is a Qt-based chess game viewer with engine analysis
A modern, cross-platform Quake game engine based on FitzQuake.
An isometric arcade-style game of skill, puzzles and exploration
Arianne is an engine to develop multiplayer online games like Stendhal
Europa Universalis 4 save game editor
Good-looking and addictive OpenSource games
V1, Mirror Classic. V2, Mirror Engine: Join Discord for access
Amateur 3D Game Engine
SDL based generic 2D game engine
Odamex is a free, cross-platform, modern client-server Doom engine
A 2D rigid body physics engine for the web
A WIP of a very cool game engine
Svelto ECS C# Entity Component System
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
C++ lightweight cross-platform game engine