Use an arrows on keybord to control the game: left, right, down and up. Up to rotate. Or use a panel under the playing field.
Categories: desktop, mobile
Feedback from the experts
Ania Kubów: A classic game of Tetris can never disappoint.
Joep van Duinen: Smooth controls. Nice to have those touch controls for mobile web. We like the quote on top.
Music is missing and perhaps add leaderboards to make it more engaging. You could add something new on top of the core mechanic to bring your own 'flavour' to the genre.