A development environment focused on modding
A free & open-source 2D sprite editor, made with the Godot Engine
An easy to use tool to change the behaviour of your input devices
A retro game engine for Python
Lutris desktop client in Python
Create Minecraft bots with a powerful and high level JavaScript API
RenderDoc is a stand-alone graphics debugging tool
Free, open source game engine online
Daijishō is a retro launcher that let you manage your retro games
Open source clone of the Age of Empires II engine
The new All-in-One CFW package for the Nintendo Switch
RPG Maker 2000/2003 and EasyRPG games interpreter
Ark pixel font - Open source Pan-CJK pixel font
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Powerful, mature open-source cross-platform game engine for Python
CTFs as you need them
Codes for "Chameleon: Plug-and-Play Compositional Reasoning
Game Boy emulator written in Python
Doom-based AI research platform for reinforcement learning
ChatArena (or Chat Arena) is a Multi-Agent Language Game Environments
UI Automation Framework for Games and Apps
A machine learning tool for automated prediction engineering
The Pokémon API
3D game engine/framework in C, with Luajit and Python bindings now