The TES V: Skyrim Mod
full-blown GTA 3 -SA clone. Done in Game Maker. No missions though
An open source C++ console based game (Windows only).
Cross platform 2D game creation framework with Python bindings
Pardal's Tactical Battle Language
Is a video game based off a well known cartoon universe.
A simple dice roller for Role Playing Games
Keep and track your adventures!
A turn-based strategy game in the spirit of Tactics Ogre
An Action Role-Playing Game
realistic but simple flight simulator: exploration and casual landing
Open-source RPG for Linux similar to the NES game Final Fantasy
NinYawg Adventure
An Angband variant with graphical display extensions.
Play the role of a virus in a quest to replicate.
RPG set in the fictional world of Mugustatia -- Written in C++/Java
A murder mystery game built from public domain elements.
Unofficial encounter builder for the Last Stand TTRPG
Beyond dreams is a 3d solo/mmorpg game currently in developement.