Play Paint.io Online Game. One of many Multiplayer Games to play online on your web browser for free at KBH Games. Paint.io is also a cross-platform game that be played on a mobile phone, tablet, and computer. Tagged as Multiplayer Games. Upvoted by 45 players. Other games you might like are Paint Pop Stacker 3D and Sponge Paint. No download or installation needed to play this free game. Hope this game brings a little joy into your daily life.