Superhero.io is a cool battle royale IO game in which you can play as one of your favorite superheros and you can play it online and for free on Silvergames.com. If you enjoy multiplayer online IO games about becoming more and more powerful, and you are a fan of comics, you are going to love this one. Start fighting as Captain America and collect orbs and kills to become other characters, like Iron Man, The Hulk, Wolverine, Batman and many, many others. Use your large weapon to attack your enemies and become the leader of the match.
In this world filled with enemies no one can help you to survive but yourself. Browse the arena with your superhero avatar and try to become bigger as you're collecting everything crossing your way. Destroy your countless enemies to be the last superhero standing and win this battle royale game. Have fun with Superhero IO!