OMG OMG OMG OMG OMG! It's here. It's finally here! Ironhide Studios released Kingdom Rush Origins. That sound you're hearing is my holiday week vanishing in a puff of extended iPad tapping. Seriously, the Kingdom Rush franchise are my favorite iPad games, and each addition gets better. Established as a prequel to Kingdom Rush and Kingdom Rush Frontiers, Kingdom Rush Origins is a tower defense game. With the help of a mobile hero, the player sets up towers to defend paths from an invading force. It's tons of fun, with new tower types, new heroes, new monsters, and assumedly a new final boss. The iPhone version is $2.99, while the "HD" iPad version is $4.99 (I recommend it on iPad). You can easily play without making any in-game purchases.