Games like Dark Atlas: Infernum
Games like Dark Atlas: Infernum include Little Nightmares II, Poppy Playtime, MiSide, Five Nights at Freddy's: Security Breach, and Firewatch. We matched them by the tags players give Dark Atlas: Infernum on Steam (Horror, Singleplayer, Story Rich, Adventure, and First-Person): closest matches first, and among equally close ones the better-known games.

Little Nightmares II
Shared: Horror · Singleplayer · Adventure

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

MiSide
Shared: Story Rich · Horror · Psychological Horror

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · First-Person

Firewatch
Shared: Adventure · Story Rich · Singleplayer

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

What Remains of Edith Finch
Shared: Story Rich · First-Person · Singleplayer

Mouthwashing
Shared: Horror · Story Rich · Psychological Horror

Little Nightmares
Shared: Horror · Singleplayer · Adventure

Amnesia: Rebirth
Shared: Story Rich · Singleplayer · First-Person

SOMA
Shared: Horror · Story Rich · Psychological Horror

Layers of Fear (2016)
Shared: Horror · Singleplayer · Psychological Horror

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

Outlast
Shared: Horror · First-Person · Singleplayer

Bendy and the Dark Revival
Shared: Horror · Singleplayer · First-Person

Escape the Backrooms
Shared: Horror · Psychological Horror · First-Person

Amnesia: A Machine For Pigs
Shared: Horror · Story Rich · First-Person

Outer Wilds
Shared: Story Rich · Adventure · Singleplayer

Bendy and the Ink Machine
Shared: Horror · Singleplayer · First-Person

Fran Bow
Shared: Story Rich · Horror · Psychological Horror

Still Wakes the Deep
Shared: Horror · Psychological Horror · First-Person

Buckshot Roulette
Shared: Horror · Singleplayer · First-Person

Garten of Banban
Shared: Horror · Singleplayer · First-Person

SILENT HILL 2
Shared: Horror · Story Rich · Psychological Horror