Halfbot's The Blocks Cometh is now free for a limited time, to commemorate the game's one-year App Store anniversary.

The Blocks Cometh challenges players to climb, dodge, and shoot their way through an endless rain of falling blocks. A series of updates followed the game's release last year, adding new characters, unlockable achievements, and a new GameBot Mode available as a 99-cent in-app purchase.

The Blocks Cometh will be free to download until February 18th.