I'll explain myself. I may be travelling somewhere for this February break, and all I'll be able to bring for entertainment for the 12 hour drive is my laptop. So I'm looking for things I can play on it.
The games don't have to be free games. I can 'buy' them if it comes to that.
To contribute to my own thread:
Dwarf Fortress
Kerbal Space Program
Powder Toy
Total Annihilation
Space Explorer
These are all good time-wasters.