Alien Memory

Alien Memory is the pairs game in a space setting. Cards lie face down on a dark starfield; turn two over, and if they show the same alien or symbol they stay open, and if not they turn back. Easy, medium and hard settings change how many pairs there are. With two players you take turns at the same screen and the game keeps the score, so a good memory pays twice: you find your own pairs and you remember the cards your opponent just turned over. There is no clock and nothing to read.