A free app for Android, by DoubleJump.

There is a zombie apocalypse, and we need your assistance! In order to strengthen your defenses, combine towers by dragging them on top of one another. To access new realms, you must defeat bosses and repel waves of zombies. While you’re away, take a break and watch your towers take care of everything. Return to check on your development and retrieve your unused money.

A novel kind of tower defense game is worth trying! combining components from idle, tower defense, and merging games.

Features:Merge to reveal 30+ Towers.There are numerous areas to discover.Get rid of endless waves of the undead.Take part in unusual events.While you’re offline, work continues.Play either online or off! No link is necessary.