FTL: Faster Than Light is now available from Steam, where this space combat strategy game is being offered for 10% off over the next week. Word is:

In FTL you experience the atmosphere of running a spaceship trying to save the galaxy. It's a dangerous mission, with every encounter presenting a unique challenge with multiple solutions.

This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.