Its an old game that i played once.
What i can remember is being in another planet, you are in an alien village, you can talk to alien npc's.
There is futuristic weapons, and dune alike monsters like those sandworms.
The main protagonist is male.
The title of the game is a single word, i think the first letter is "S" but im not sure.
Im almost sure it was third-person.
Reminds me of half life for some reason.