Games like Heritage
Games like Heritage include Mouthwashing, Phasmophobia, Firewatch, What Remains of Edith Finch, and SOMA. We matched them by the tags players give Heritage on Steam (Horror, Thriller, Psychological Horror, Mystery, and Story Rich): closest matches first, and among equally close ones the better-known games.

Mouthwashing
Shared: Horror · Psychological Horror · Story Rich

Phasmophobia
Shared: Horror · Psychological Horror · Mystery

Firewatch
Shared: Story Rich · Mystery · Atmospheric

What Remains of Edith Finch
Shared: Story Rich · Mystery · Walking Simulator

SOMA
Shared: Horror · Psychological Horror · Story Rich

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Walking Simulator

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

MiSide
Shared: Psychological Horror · Horror · Story Rich

Alan Wake
Shared: Horror · Story Rich · Thriller

Poppy Playtime
Shared: Horror · Psychological Horror · Mystery

No, I'm not a Human
Shared: Horror · Psychological Horror · Story Rich

Amnesia: A Machine For Pigs
Shared: Horror · Story Rich · Walking Simulator

Demonologist
Shared: Horror · Psychological Horror · Dark

Little Nightmares II
Shared: Horror · Psychological Horror · Atmospheric

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Still Wakes the Deep
Shared: Horror · Psychological Horror · Walking Simulator

Detention
Shared: Horror · Psychological Horror · Story Rich

Garten of Banban
Shared: Horror · Psychological Horror · Mystery

Notch - The Innocent LunA: Eclipsed SinnerS
Shared: Horror · Story Rich · Mystery

Summer of '58
Shared: Horror · Thriller · Psychological Horror

Little Nightmares
Shared: Horror · Atmospheric · Story Rich

Firework
Shared: Horror · Mystery · Psychological Horror

Fears to Fathom - Norwood Hitchhike
Shared: Horror · Psychological Horror · Thriller

Call of Cthulhu®
Shared: Horror · Psychological Horror · Story Rich