"Portal 2" ... I played this as the request of Sir Dhahii (he has hounded me to play other games, but this was the first that held any innate appeal for me).
Very good. Except too short, and a little bit easy. Have yet to play it with another being, though. Ultimately, a reasonable waste of time if you feel you have time to waste. Good dialogue. I empathized with everyone.
Reminded me of an experience I had once as well, but that was long ago, on a different world.