Bitburner Game
Defeat all the beasties to claim victory!
2D Game Engine
The ECE is for creation and managing ED3+ED4 characters.
Ur-Quan Masters High Definition
A fast, scalable, distributed game server engine/framework for C++
it's simple console RPG game.
low fantasy cRPG
A complete web framework to create online Fighting Fantasy adventures
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
Free MMORPG
A graphical frontend for PbeM like Eressea
A minimalist and cross platform System Shock source port
Great RPG door bundled for Linux BBS's
A suite of tools for any RPG system
Statistics for Lugdunon servers
Warlock of Firetop Mountain Roguelike
Version of the classic game reworked to support running as a BBS door
A fantasy RPG.