PC Gamer - Bored game designers need to be careful about what they doodle. Somewhere in the margins of the Magrunner design doc, a careless code drone started scribbling some tentacles. Those feelers grew, encasing the fiction, choking the corridors, binding the blocks. Consuming. What was a Portal-style block-fumbling puzzle game became a clash of Valve’s design and H.P. Lovecraft’s fiction.