Circle is a simulator.
What Circle is
Circle is a video game.
The premise, in the publisher's words
Circle is a tower defense game with a light card system, where you will play as a commander defending the Earth: by building/upgrading weapons on a rotating device called "Circle" and using cards to deal with the continuously invading aliens.
How it plays
It is a single-player game with no multiplayer component.
Screenshots
All media
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