If it wasnt for the many moral issues, Operencia: The Stolen Sun would be an easy recommendation. Theres much to like with the good dialogue, solid gameplay, and many riddles and puzzles to solve. Sadly, Operencia: The Stolen Sun is not available on Steam yet, but that hasnt stopped people from posting questions on the Steam page forums. Epic doesnt have forums, or a working desktop shortcut for that matter.
Source: N4G PC Operencia: The Stolen Sun review – ChristCenteredGamer