Arx Catalyst

Arx Catalyst was a fan-made game developed by Thomas Pendergrass under the Unity engine, which focuses in the cult of Akbaa and gameplay in the outside world.

The game or planned demo never was released but there are some contents and videos in the creator's youtube channel, he worked on his game "Depths of Malayo" as well, but there are no new updates since march 31th 2013.

You can find more on his blog here: http://arxcatalyst.weebly.com/