An accident at the biochemical lab has released a neurotoxin, and you’ve been quarantined after exposure. Maintain your sanity by playing a card-matching game.

The table is littered with 10, 20, 36, 52, or 72 face-down cards. Flip two cards, and if they show the same emblem, you keep them. If they don’t, flip them back.

http://pineight.com/croom/README