Planet Cube

Planet Cube is an adventure game in which a young postman finds himself in a mysterious place from which he cannot get out. The place where he found himself is the amazing planet Cube, which consists of six different territories. In each of these territories, our hero will have to solve a number of tasks, despite the hostile creatures that prevent him from doing it.

Test it:  https://dragonmesh.itch.io/cube-planet

Source: itch.io