Neverwinter Nights Diamond - Neverwinter Nights Diamond is a Third-person Role-playing, Action-Adventure, Single and Multiplayer video game developed by BioWare and published by Infogrames.
Spring Engine - Spring is a versatile 3D RTS game engine.
Titan Quest - Titan Quest Anniversary Edition Titan Quest is back! Nordic Games (now: THQ Nordic) acquired Titan Quest in 2013 from THQ and started to work on bringing back the multiplayer and improving the game further.
FIFE - FIFE engine - open-source multi-platform isometric game engine
Path of Exile - Path of Exile is a free to play online action roleplaying game that draws clear inspiration from Diablo but charts a path all its own.
PlayCanvas - PlayCanvas is an open-source game engine built on WebGL and WebVR.