Alien Attack is an ASCII text game. You control a ship and have to destroy the alien fighters. The aliens will stop at nothing to destroy the Earth. Let one by and you lose.

You have to be quick because the aliens come in sets of threes. After a little while, the speed of the game increases and you have to be fast because it gets faster and faster. You have to have good timing in this game because if you miss once in the fastest speed, you're done. There are no power-ups in this game. A high score table keeps track of the players' results.