While developers Shock Panda totally jacked Zach Gage’s UI from SpellTower, their Letterbox is a novel permutation on the word game. You’re handed a 10×10 cube that you must deconstruct through THE POWER OF WORDS. But seriously, stringing together letters removes blocks which then makes the interior accessible. Your goal is to remove every block, an extremely difficult task, but you are aided by power-ups like dynamite (naturally).