The 4-World Planet

The 4-World Planet is a text-adventure game, meaning that you control your character by typing commands; for example, if you're in a room with a door, you can type "open door" to open the door.
The storyline: You are an astronaut. You go on a solo mission to a planet that was recently discovered. But the planet's gravity is stronger than you expected, so you are forced to perform a crash landing, damaging certain parts of your ship.