JavaScript-based game engine designed to empower developers
A game engine with an emphasis on real-time cutting-edge solutions
Zig game engine & graphics toolkit
Game engine supporting many 3D/2D formats and graphic effects
A game engine powered by python and panda3d
Descent 3 by Outrage Entertainment
GemRB is a portable open-source implementation of the Infinity Engine
s&box is a modern game engine, built on Valve's Source 2
Real Time Strategy game engine supporting early Westwood classics
A dead simple 2D game engine for Go
YimMenu, a GTA V menu protecting against a wide ranges
Godot game template and component-based framework
3D game engine/framework in C, with Luajit and Python bindings now
Fully async, multithreaded, predictive, open source, 3.01 reach
Godot Minimal Theme
lua dev plugin for unreal engine 4 or 5
IsoCity: City building simulation game
A 2D rigid body physics engine for the web
Orx: Portable Game Engine
2D JavaScript Physics Engine
Minecraft server optimization guide
High performance UI layout library in C
A modern, cross-platform Quake game engine based on FitzQuake.
Good-looking and addictive OpenSource games