I was going to post about Gigantic Army, but this is much better. Shoot First from indie developers Teknogames is the unholy child of Roguelikes and top-down shooters, and it's great. "But wait!" I hear you squeak, your voice reedy and choked with inferiority. "I thought Gauntlet was the unholy child of roguelikes and top-down shooters..." Oh, my boy. You have so much to learn.