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A game engine with an emphasis on real-time cutting-edge solutions
Game engine supporting many 3D/2D formats and graphic effects
Zig game engine & graphics toolkit
One of the best Prodigy hacks
HTML5 Canvas Tower Building Game
An easy-to-use, working NitroType hack for typing at insane speeds!
A game engine powered by python and panda3d
GemRB is a portable open-source implementation of the Infinity Engine
Real Time Strategy game engine supporting early Westwood classics
A list of games, add-ons, maps, etc. hosted on GitHub
A dead simple 2D game engine for Go
A web-based roguelike written in Dart
s&box is a modern game engine, built on Valve's Source 2
YimMenu, a GTA V menu protecting against a wide ranges
A game for learning CSS flexbox
Action RPG that's easy to mod
All Google Snake mods combined into one
Godot game template and component-based framework
High performance UI layout library in C
A game for learning CSS grid layout
2D JavaScript Physics Engine
Fully async, multithreaded, predictive, open source, 3.01 reach
IsoCity: City building simulation game
3D game engine/framework in C, with Luajit and Python bindings now