Are you truly lost? Will you ever return home? A researcher on a space expedition is stranded on an alien world with no way to get home.
Download the Lost module and its dependencies. When this is installed, create a new world with the Lost template. If everything worked, you should spawn in a world with a small house nearby.
As you explore you might find buildings that contain treasures, secrets and puzzles.
Spoiler regarding some puzzles.
Buildings are generated as you are exploring, some puzzles might require you to revisit areas.
As you progress the story will be added in your Journal as you gather more research.
Find books to be your guide.