Ever wonder why there's no cool animals out there like unicorns and owlbears?4.20 / 5.00 35,910 Views
A rip-roaring dungeon running adventure!4.02 / 5.00 17,590 Views
Keep calm and shoot down mobsters.3.53 / 5.00 16,777 Views
This is per http://www.xkcd.com/888/ ~ a "heavenly" version of Tetris. Wait for the yellow single-block to expand in a hallelujah of line-fitting miraculousness. If it works right. ;)
ETA: added basic TGM algorithm as well as wall kick. Thanks for the suggestions!