The Force Unleashed has a mobile version that's pretty fun.. You move your finger around in different patters for different force powers.
Beyond that, if you can increase your mouse sensitivity, you could always go the way of Elder Scrolls. Keeping things squarely in the middle and navigating with the keyboard is easy enough, and it's a good time waster.
Prey, too. I've fallen in love with that game. It's hella fun.