A new Minecraft world editor and converter
A sharp, readable, vector-y version of Monocraft
Command & Conquer: Remastered Collection
The source code to VVVVVV
Set of Python modules designed for writing video games
A game engine powered by python and panda3d
Ct.js is a desktop game engine that makes learning programming fun
Open game and rendering engine packed into a JavaScript framework
Free game engine for development of desktop, mobile, and web games
3D Game engine with editor
Code for Cicero, an AI agent that plays the game of Diplomacy
Stride (formerly Xenko), a free and open-source cross-platform C# game
A generic, simple and fast implementation of Deepmind's AlphaZero
An updated version of the classic "Basic Computer Games" book
Source code repository of the FreeOrion project
Games for tomorrow's programmers
An OpenGL RTS game engine written in C
Action-adventure game originally released in 2013
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Free, open source game engine online
Contains the code for CM-SS13
The Tiny JavaScript Game Engine That Can!
The flexible game engine
The Shiptest Codebase