Action-adventure game originally released in 2013
Ct.js is a desktop game engine that makes learning programming fun
Role Playing Adventure Game Builder in 3D Environment.
Random generators for tabletop RPG games (D&D, Pathfinder, D20, etc)
Choose Your Own Adventure style authoring and reading
A retro style video game engine for RPGs and adventure games.
GameEngine by SymlaDevelopement
Advanced technology that powers large scale, independent 3D games