[dombeef] originally built pocketTETRIS as a Father’s Day gift for his Tetris-loving pops ... and his desire for a durable 3D-printed case. It uses a ATtiny85 for the brains, mounted on a ...

Released in 1989, Welltris was well received at the time but it hasn’t left the same mark on history as Tetris. It’s a top-down semi-3D Tetris, with blocks sliding down one of four walls.