The Path is a 'videogame' in the most unique sense of the word. It poses no real puzzles or challenges, and you can only walk or run. The iffy trailer might go some way to explain what it's about (a reimagination of the Little Red Riding Hood tale), but having just bought the game (£6), I can say that it is fucking terrifying. As a film it might be moderatly creepy, but just the fact that you control where the girls go in the forest makes it much scarier.

A free game by the same guys that everyone should try out is The Graveyard. Similar in what I think they're trying to get across, play it before watching the video. Or watch the video for 3 seconds, then play it.