free browser game
1v1 Io
Play 1v1 Io online for free — nothing to install, restart any time, fullscreen supported.
Play 1v1 Io Online
Launch 1v1 Io directly in your browser and use fullscreen for the cleanest run.
ready to play
1v1 Io
Press Play 1v1 Io to load the game iframe.
1v1 Io works best in fullscreen. On mobile, rotate your device if the game area feels cramped and use the touch controls shown inside the game.