Soma (2015)

The monsters are the least frightening thing in Soma. Simon Jarrett sits down for a brain scan in Toronto and comes round in PATHOS-II, a half-flooded research station at the bottom of the Atlantic, and Frictional Games, the studio behind Amnesia, uses its dark corridors and hiding to press one question about what makes you you until there's nowhere left to look away. If hide-and-seek horror is what's stopping you, Safe Mode, added in 2017, stops the creatures attacking and leaves the story untouched. Allow around ten hours.