The Vanishing of Ethan Carter (2014)

In The Vanishing of Ethan Carter, you play as Paul Prospero, an occult detective who receives a disturbing letter from Ethan Carter and realizes that the boy is in grave danger. When Paul arrives in Ethan's home of Red Creek Valley, he realizes things are even worse than he imagined. Ethan has vanished in the wake of a brutal murder, which Paul comes to see might not be the only murder to investigate. Using both regular and supernatural detective skills, Paul must figure out what happened to the missing boy.