The most thrilling monster io game! Can you become the biggest and strongest monster in the universe? In this addictive casual game, you must chase, suck and grow bigger by attacking other monsters while customizing your character with unique elements! With Monster io, you can compete with other players as you battle it out to become the ultimate survivor. Watch your live rank climb as you outsmart your opponents with your tactics. But be careful, one wrong move and you could fail! Play Monster.io now!