Crowded City.io is a cool power-ups game free play. It leads you and every opponent to a place in which you have to fight against each other for survival. However, the main aim will focus on growing your swarm size. After you step into the arena in Crowded City.io online unblocked, you can attack humans. Infect them and they will become zombies. Aside from that, you can earn the highest rank faster if you destroy enemies existing on the map. Good luck!
How to play
Use the mouse cursor and the mouse button to control your party