Altus - Below the Root (2018)

Prepare yourself for a brooding, cinematic adventure below the root.
Listening on headphones in a darkened room is encouraged.

The title is based on a game from 1984 with the same name. The game’s story takes place after the Green Sky Trilogy of novels by Zilpha Keatley Snyder. It was one of the first open-world games where you could travel in any direction right from the beginning, presenting a very large gameworld for its time.