Sorry, slither.io has no MFi controller support!
slither.io on iOS does not support controllers and is incompatible with the MFI standard.
Play against other people online! Can you become the longest slither of the day? If your head touches another player, you will explode and die.
If other players run into YOU, then THEY will explode and you can eat their remains! In slither.io, even if you're tiny, you have a chance to win.
If you're skilled or lucky, you can swerve in front of a much larger player to defeat them! Download now and start slithering!