Cave Speed

Cave Speed is a text-mode falling-down-a-well type game, similar to Deep II, Pitfall (no, not THAT Pitfall) and Jellyfish. This game has a Star Wars vibe, with a long and pointless introduction story about flying your Y-Wing into an asteroid or something. There are apparently multiple levels, but the gameplay is quite boring. As you speed through the cave (asteroid?) you need to collect fuel (brown smilies) to keep going, collect other things for points, and avoid walls. I think there are supposed to be enemies that attack you, but I guess I didn't make it far enough to encounter any.