Out tomorrow, Firewatch could be this year's Monument Valley – an indie game catapulted to mainstream success by a mixture of lovely low-poly graphics and distinctly different gameplay. There the comparison ends. Firewatch is for computers and consoles – not phones and tablets – it's first-person with exploration and tasks to complete, and it has a complex narrative that builds and builds (if pre-release reviews are to be believed).

Firewatch has been art-directed by British illustrator Olly Moss, best known for creating geometric posters for the likes of The Dark Knight Rises, the Oscars and the digital editions of JK Rowling's Harry Potter novels.

As you can see from the screenshots we've collected here and the trailer (above), Olly's pared-down style gives the landscape of a largely empty wilderness a melancholy feel that perfectly matches the story. In Firewatch, the player is Henry – who has taken a job as a fire lookout in an isolated part of Yellowstone Natural Park after a tragedy. From here, you explore the environment as guided by your supervisor Delilah – and much of the game's story is driven by the relationship between the two, and the mystery they discover together (while being permenantly separated and only communicating only through walkie-talkies).

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