Horror has always been one of the most popular forms of fiction, with frightening themes appearing in art stretching back to the oldest traditional myths, as well as in modern media spanning film, television, literature and games - but you don't need to buy the latest AAA shocker to get a good fright. Some of the scariest experiences can be found in indie games, for free, on Itch.

Due to their interactive nature, video games are uniquely suited to give their audience a good fright. If you're not just a passive observer, the level of immersion will make the anxiety and tension hit different. The psychology of horror is well studied, and there are many methods to send shivers up someone's spine - many AAA horror titles rely on all the fancy graphics to make viscera glisten ever so stickily on the newly-split skull of whatever mutant zombie is nipping at your heels (not all, we definitely acknowledge that!) while some cheaper titles coax out YouTube-worthy reactions by flashing an over-contrasted face on the screen when you least expect.

There is, however, a strata of horror games that eschew these devices in favor of a more unnerving, subtle approach. Decidedly less common than the bolder takes on horror which have been hyperpopularized by YouTube and streamer culture, some of these games won't scare you outright but rather instill a lingering sense of dread and unease. Some don't even have any real scares at all, but rely on atmosphere to become creepy. Ultimately relying on such primal sources of fear instead of a monster work in their favor - no monster design is scarier than the unknown, and after a game finally reveals its boogeyman, the magic is gone. When there is no monster to reveal, the mystery remains.

Itch.io has long been the home of free and cheap indie titles which places the developers and the players first, becoming a storefront that cultivates originality and experimentation. Even so, it is full of more formulaic horror games, so we've collected 5 of the most unnerving and unusual atmospheric horror titles you can play for free - or, if you want, you can support the developers too.