RetroArch is a frontend for emulators, game engines and media players.
Inspecting and manipulating NBT as a file system
3D Engine c++
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Zoomable user interface (ZUI) with file manager, file viewers and more
GemRB is a portable open-source implementation of the Infinity Engine
JavaScript framework to build game engines, games, emulators and apps
INSTEAD - Simple Text Adventure Interpreter.
SRCP system daemon
TKD Scoring Wi-Fi Server supporting Android and IPhone clients
quiz game with spin wheel
An open-source Phantasy Star Online server for *nix
General Purpose Engine for Graphic Adventures.
A very efficient tutor.
a multiplatform, full-featured GameBoy classic emulator