These were some early concepts done before we knew anything about the story or game play we wanted to have in Helheim. Cory knew he wanted to take us there so a group of us went off and explored what this frigged land could be largely based on readings of Norse Mythology and about the realm itself. It wasn't till my friend Annis Naeem was brought on that it really came together, he did a fantastic job of coming up with something really unique. Jin kim took those ideas even further into production and helped flesh out the docks and the winds of hell interacts.
Sukru Gilman and Philip Weisfeld did a fantastic job actually building the level for the game check their work out here: