About Merge Tower Defense

Merge Tower Defense asks you to protect a route against successive groups of attackers. Your defenses come from building towers and combining matching ones into stronger structures. Clearing a level opens another challenge, while improvements to firing speed and damage help your towers handle incoming enemies.

Special abilities provide support when ordinary attacks are struggling. You can call an airstrike, place a pool of acid, or send a flying saw into the fight. Choosing useful moments for these attacks complements the work of developing your towers.

How to Play Merge Tower Defense

On a computer, trigger an automatic combination by clicking a tower twice with the right mouse button.

Alternatively, keep the right button pressed and move one tower onto a matching tower.

On touchscreens, tap a tower twice or keep your finger down while moving it onto an identical one.

Tips & Tricks

1Look for matching towers before deciding which defensive structure needs further investment.
2Compare attack speed with damage when choosing how to strengthen your defenses.
3Use a special attack when approaching enemies need more attention than your towers can provide.