GemRB is a portable open-source implementation of the Infinity Engine
Game engine to build text adventures.
Text adventure: Battle monsters & cast spells to claim the Orb of Zot!
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
plugin-based RPG manager in C++ and Qt5
RPGDS is a dice simulator for coin and polyhedron dice.
An Open Source RPG - a tabletop game
The classic intelligent role playing game
Modified Pokemon games for emulators or devices.