Circular Defense

Circular Defense puts you in charge of the Frontier Planet Pioneering Office at Star-Smile Inc. Your mission is to protect frontier planets from the life form Carolian by placing Circle Turrets to attack incoming enemies.

Defend the planets

You can place six types of circles anywhere on a stage. Turrets placed in the circles automatically attack enemies, while placing circles costs resources, so you need to use them systematically. Clearing stages earns rewards that you can use in the lab to reinforce turrets and increase their defense.

Talk with your secretary

You can choose whether to talk with your secretary. Your conversation choices affect her likability, and talking with her as much as possible can lead to the best ending. If you fail to protect a star, she has to do extra work and becomes fatigued; leaving her tired may cause problems.