Here's what I know I've gotten so far: (in no particular order)

Knightmare Tower - $3.99
Muffin Knight - $2.99
In Plain Sight - $2.99
Towerfall - $14.99
Bombsquad - $4.99
Minigore 2 - $4.99
Dig! - $1.99
Fallen World - $2.99
Get On Top - $1.99
2Player - $0.99
Pocket RPG - $4.99

Less than it cost me to purchase NHL 14 for my PS3 recently and has given me MONTHS worth of fun an entertainment, not to mention fun when my friends come over.