Merge Tower:Idle Strategy Game

Unknown alien enemy is invading the earth!Beautiful blue planet is in desperate and need your salvation. Game features: - Easy to start Just tap and swipe easily to send your troops to fight automatically.You can get a lot of rewards even offline. - Interesting strategy experience Different shooting strategies correspond to different shooting effects,Move your brain,fifty Interesting levels are waiting for you! - Rich game content Placement, tower defense, level challenge, synthesis, multiple armor...Rich game content is waiting for your discovery! - Extreme challenge Upgrade your position and challenge yourself! Win your glory badge!.