- in Agario Style, IO Games, Power-ups, Upgrades
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About game is now free to play online on Braains-io! As a monster, you explore a big forest and snowy arena for food. You have to eat food to grow your size so you can beat other monsters that are smaller than you. But, you have to avoid the bigger ones! In Big Monsterz io, you also need to avoid all obstacles when you move, cross the teleport portal to change the scenery, and try to survive to win. Your goal is to reach the top! Play the game now and don’t forget to check out other best io games 2020! Have fun with it!


Use the mouse to move your monster around the arena in the game.

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