Planet-X

In a future, closer than you may think, you control a lone space traveler, who is lost on a small planet in our solar system, far away from the sun, beyond Pluto. Some people debate whether this is a planet or not...at the moment you dont care, you need to find a way to get home since your spaceship has broken down.

On Planet X, you have found numerous of ancient alien artifact teleport gates that lead to different places on the planet.
The purpose and structure behind them is lost in eternity, but somewhere on Planet X there is supposed to be a big portal leading to the space station TERRA 42, that is orbiting earth.