Just Get Through [Steam store page]
If you mash together the responsiveness of Super Meat Boy, and the randomness of Spelunky, you get a simple but satisfying randomized platformer.

Furious Angels [Steam store page]
Simple yet elegant gameplay. This is a great example of how to make a game engaging but super accessible.

Just Cause 2 [Steam store page]
Something for everyone - a sandbox with over the top violence and stunts, plenty of collectables, challenges, and a story line that appears just often enough to keep you interested in the missions. Steal helicopters and parachute from planes...

Extremely inaccurate guns - worse than Counter Strike: Source - which makes it nearly impossible to kill anything at range without several clips of ammo. At close range it takes 2-3 head-shots from 4ft away, which is ridiculously bad. Decent story though.