GemRB is a portable open-source implementation of the Infinity Engine
The ECE is for creation and managing ED3+ED4 characters.
A complete web framework to create online Fighting Fantasy adventures
RPG character generator for RPG d20 systems.
3D urban environment renderer : browser-app ; as well as a GTA clone
plugin-based RPG manager in C++ and Qt5
Read and run Cryptic Studios games .demo files
Zero version of a turn-based strategy/RPG game.
Calculate various aspects of the Kontinuum RPG system.
Managing Tool for Birthright
Cross-platform port of Arx Fatalis, a first-person role-playing game
A tool for editing OHRRPGCE RPG files
An Open Source RPG - a tabletop game
DiaT is a Textadventure
The classic intelligent role playing game
A tool for roleplaying gamemasters