BrutalMania.io is an online gladiator.io game where you will face off against a variety of players in the most horrific fight you have ever seen. You can take on other players to defeat them all and win the game.BrutalMania.io is an online gladiator.io game where you will face off against a variety of players in the most horrific fight you have ever seen. You can take on other players to defeat them all and win the game.