Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
Building Tools and Aesthetic Technology
DOSBox Staging is a modern continuation of DOSBox
Archipelago Multi-Game Randomizer and Server
Minecraft map editor and mod
Open source Old School RuneScape client
A permissions plugin for Minecraft servers
C# application with primary purpose of farming Steam cards
Cross-platform 2D and 3D game engine with modular architecture
A free/open source client and automation tool for Ragnarok Online
API and runtime that allows access to VR hardware
Free game engine for development of desktop, mobile, and web games
CTFs as you need them
Ct.js is a desktop game engine that makes learning programming fun
A free and open-source Touhou Project fangame
All of Minecraft, EASILY get Minecraft resources
Homebrew development library for Nintendo 3DS/Horizon OS user mode
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
The Tiny JavaScript Game Engine That Can!
A completely free, open-source, 2D game engine
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Programming eXperience Toolkit
Gideros Release version
An Ubuntu remix for both new and experienced Linux sophisticates