Lightweight console for Minecraft chat and automated scripts
One of the best Prodigy hacks
A certain block game
Rcon client for Minecraft
A cross-platform PSP emulator
The ioquake3 community effort to continue supporting/developing id's
Noob-proof (N)3DS Custom Firmware
One framework for creating powerful cross-platform games
Fast PlayStation 1 emulator for x86-64/AArch32/AArch64
Xash3D FWGS engine
The Playstation 2 emulator
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Complete BIOS & firmware collection for retrogaming emulators
An unofficial PC port of the Xbox 360 version of Sonic Unleashed
An open source flight dynamics & control software library
Open source clone of the Age of Empires II engine
Open source simulation game based on Transport Tycoon Deluxe
A tool for converting Xbox 360 shaders to HLSL
Create custom themes for the Nintendo Switch
Free game engine for development of desktop, mobile, and web games
A dead simple 2D game engine for Go
An OpenGL RTS game engine written in C
Injectable LUA scripting system, SDK generator, live property editor