You’d be forgiven for thinking horror games have lost their edge lately. The current torchbearer is Amnesia: start with a weird fiction pedigree, keep the player on her toes with careful formal elements, and pop in a horrific slavering hellspawn when all else fails. Games like Slender and its YouTube-ready ilk have nixed the first two, leaving a spare, often-generic level design that disperses jump scares with unflinching repetition. Lord knows how many Slender-likes populate Steam Greenlight and Kickstarter, but it’s a formula that sells. One thing you cannot accuse the freshly Kickstarted OMORI of is exploiting a formula—unless you somehow…