Cellz io is a great multiplayer battle royale game that thousands of players play. As it is played with cells, it is similar to Agar io. You will have a small cell at the beginning of the game and you will try to grow it while moving around the map and eating generated cells that are scattered around the map. You can eat anything that is smaller than you. That means you can also eat smaller players! But you should be careful that you can be eaten by larger players. Cellz io is a fun game that you should try.