Pokémon Save File Editor
The Playstation 2 emulator
Free game engine for development of desktop, mobile, and web games
PlayStation 2 (PS2) BIOS core firmware
Homebrew save management, editing tool and memory trainer for Horizon
RPG dice roll simulator for vintage Tandy TRS-80 100/102/200 laptops
A 2D game engine and level editor
Universal elite game trainer for the command line on Linux.
Autonomous life simulation written in bash
starrydb is game server engine
A lightweight frontend for launching SNES games on the Raspberry Pi.
Text-based adventure game
game cheater for Android
a game library to develop audio games
Complete, Fast, Accurate, Game Boy/CGB/SGB Emulator.
An independent Data Distribution Management testbed
Modular Minecraft server plugin - commands, events, ...
Note: Zaxmidlet is deprecated. Current work is on JFrotz for J2ME.