My favorite is a variation called first-person tetris: https://www.firstpersontetris.com/ https://www.firstpersontetris.com/ It's fun to give someone without

My favorite is a variation called first-person tetris: https://www.firstpersontetris.com/ https://www.firstpersontetris.com/ It's fun to give someone without telling them the whole view rotates whenever you rotate the piece because it's extremely disorienting if you're not used to it, but after a bit of practice it becomes easy