Year Walk is an adventure horror game for iOS devices. It has received many positive reviews and from the messages I’ve received about this game, it really messes with your mind.

A year walk is a pseudo pagan ritual in which people venture into deep, dark forests to catch a glimpse of their future.  

The game begins with an unnamed protagonist visiting his lover, Stina. She warns the player about the dangers of year walking, saying that her cousin had died while engaging in the activity.

The player then returns home, and awakens at night to begin his walk. Throughout his walk, the player will encounter and overcome supernatural beings, overcoming them through the completion of puzzles. (Official Website)