Jon of RealGamerNewz writes, "Mark of the Old Ones is an upside-down, physics-based adventure game built around a Lovecraftian theme and yet it is also one of the most unique projects we’ve had the pleasure of seeing come out of the indie scene in some time. Players fill the role of main character Thomas who is injured in a plane crash that completely removes one of his legs when a symbiotic parasite attaches itself to his spine, brain, and nervous system allowing him the ability to escape an otherwise grim fate. The initial horror of such a thing happening, the question of where does the symbiote end and Thomas begin, and the eventual realization that life will never be the same are just some of the things players will experience alongside the main character they control in Mark of the Old Ones.
The game and story of Mark of the Old Ones together form an integrated experience that is made possible by the team at developer Hit The Sticks’ fully modeled muscles and bones (down to realistic joints) that produce gameplay and visuals which allow intense immersion. The setting that this all takes place in is just as epic as the premise though. Thomas didn’t just crash his plane to find one symbiote waiting for him, he has landed in the middle of a location called Namaset which once housed a huge presence “Kraal” who was a living creature known by a thriving society as their ruler, and their god. This being created the “Brood” which are the symbiotic creatures that became one with their hosts; the priests, the worshipers of Krall; the many members of this functioning society Namaset."