Rayman Fiesta Run ($2.99)

It’s won award after award and deservedly so. In fact, Plants vs. Zombies 2 is my game of the year for 2013. It perfectly matches addictive gameplay, fun graphics and increasing difficulty to keep you occupied for hours. Essentially a tower defense game, PvZ2 has more plants than the original, different zombies, and three cool new worlds to go time-hopping through. Plus, you can keep replaying the levels to collect stars and unlock more levels, so you’ll never tire of it.