Steam is a treasure trove for horror games, whether you’re looking for combat-heavy AAA games, indie survival horror, asymmetrical multiplayer, or something unique to send shivers down your spine.

While there are a few dominant franchises in AAA horror, the genre is also well-known for surfacing surprise indie hits, with small team- and solo-developed horror games often going hugely viral. Many notable horror hits originated on Steam, often going through its Early Access program–with many of the platform’s most popular horror titles still in early access today.

With thousands of games categorized as horror on Steam, it can be a scary task to pick the titles that will truly terrify. We’ve selected 13 of our favorite horror games on Steam, presented in no particular order, including some Steam exclusives and some multi-platform hits.

For more games that will keep you awake at night, check out our picks for the 27 best horror games on any platform, or sink your teeth into the 18 best games featuring werewolves.