After a bit of a wait, IGN has now announced OTTTD as July’s Free Game of the Month. Available on iPhone, iPad and iPod Touch, free promotional codes are available now. Regularly priced at $4.99, the game has dropped to $2.99 on the App Store previously, but this marks this first time we have seen the iOS version go free.

OTTTD (or Over The Top Tower Defense) is not your average tower defense game. It blends elements of real time strategy games, tower defense and giant, flying, undead sharks. While described as “anything-goes TD game that doesn’t take itself seriously,” there is an intense and tactical blend of RD and RTS gameplay at its core.

With additional game modes on the way, there are already 20 story missions, a unique and meaningful tempa-death system and boss battles, as well as a character class and leveling system. You can check out some screenshots and the gameplay trailer below.