Hi TouchArcade, I’m the developer of Zombie Block Defence.

The wall is the puzzle. You place a limited set of blocks around your hero, start the wave, and watch the zombies look for a way in. They’ll squeeze through gaps and chew through weak blocks. Sometimes the whole run comes down to one corner.

There are 50 levels and a Daily Wave. As you go, you unlock blocks that can freeze zombies, blow up a crowd or lure them away with a brain.

It’s free to play, with ads and optional...

Zombie Block Defence (by Bad Bit Games)