Mystery Of Time And Space Adventure 
In the spirit of my post on puzzle hacking here is a great point-and-click game that will have you banging your head against the wall and trying to gnaw your own arm off. But trust me, it's fun. The only thing I can say, is plan to spend multiple sessions on this one. The name of the game is Mystery Of Time And Space Adventure and the idea is to escape the room. But that's only the beginning. I need not say more, but enjoy...