While I've had this story idea marinating in my mind almost since I began playing the game it's based on (over a decade ago) I only began writing it about two and a half years ago. I stopped after half a year, and I didn't begin writing again until this summer.
Thanks to my brothers' support, I decided to jump right into the middle of the story, where tensions are much higher, characters are already established and connected to each other, and where there's less of what the original game offers and more of what I've brought to life.
TLDR: Some space knights crash on a planet with a labyrinth leading to the core. Unable to rebuild their ship, they believe the core to be their only hope of getting back to their home-world, but they have to stop a war between the planet's natives to get to it.