The Tiny JavaScript Game Engine That Can!
Stride (formerly Xenko), a free and open-source cross-platform C# game
Open game and rendering engine packed into a JavaScript framework
dhewm 3 main repository
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
A Flutter based game engine
3D game engine with lua scripting
Free game engine for development of desktop, mobile, and web games
3D and 2D game engine written in Rust
3D Procedural Game Engine Using OpenGL
A fresh & lightweight javascript game engine
JavaScript-based game engine designed to empower developers
Game engine supporting many 3D/2D formats and graphic effects
A cell-based puzzle game featuring classic and completely new puzzles
PyCAPGE - Python Classic Adventure Point and Click Game Engine
MIT Licensed Open Source version of Torque3D from GarageGames
A fork of Chocolate Doom with small Quality of Life enhancements
DOOM / Heretic / Hexen source port with enhanced graphics and UI
3D C++ Game Engine - yet another open source game engine
A cross platform Lua based game engine
A 2D game engine and level editor
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
A project to create a blazingly fast Swift game engine
Mahasona engine is an open source game engine.