Here is a fun and almost mindless shooter to pass the time. Pixel Purge is a standard dual-stick space shooter (well, wasd and mouse, but same difference.) You shoot random pixel aliens and gather pixels to upgrade your various systems. The upgrades are part of the fun. The achievements also add to the pleasure. The pixel aliens they send after you get progressively larger and then more varied and more difficult to kill. Eventually they will send alien pods that split into a million tiny 1-pixel-sized aliens that swarm after you. I would have preferred that the difficulty level ramp up sooner, but overall this game is still a lot of fun and a good way to pass 20 minutes or so. I think I got to level 15 on my last try before dieing. How high can you get?