Games like Darkness Within 2: The Dark Lineage
Games like Darkness Within 2: The Dark Lineage include The Room Two, Detention, Fran Bow, Poppy Playtime, and The Room Three. We matched them by the tags players give Darkness Within 2: The Dark Lineage on Steam (Adventure, Indie, Lovecraftian, Horror, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

The Room Two
Shared: Adventure · Horror · Indie

Detention
Shared: Indie · Horror · Psychological Horror

Fran Bow
Shared: Psychological Horror · Adventure · Horror

Poppy Playtime
Shared: Horror · First-Person · Psychological Horror

The Room Three
Shared: Adventure · Indie · Point & Click

Conarium
Shared: Adventure · Lovecraftian · Indie

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · First-Person

Sally Face - Episode One
Shared: Indie · Psychological Horror · Horror

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

Darkness Within 1: In Pursuit of Loath Nolder
Shared: Adventure · Horror · Lovecraftian

The White Door
Shared: Adventure · Indie · Psychological Horror

Little Nightmares
Shared: Adventure · Horror · Indie

The Room 4: Old Sins
Shared: Adventure · Lovecraftian · Point & Click

Rusty Lake Paradise
Shared: Indie · Adventure · Psychological Horror

Little Nightmares II
Shared: Adventure · Horror · Psychological Horror

Still Wakes the Deep
Shared: Horror · Lovecraftian · Psychological Horror

The Room
Shared: Adventure · Indie · Point & Click

Penumbra: Black Plague Gold Edition
Shared: Adventure · Horror · Psychological Horror

Penumbra Overture
Shared: Adventure · Horror · Indie

Call of Cthulhu®
Shared: Lovecraftian · Horror · Adventure

Inside the Backrooms
Shared: Horror · Adventure · Psychological Horror

Dagon: by H. P. Lovecraft
Shared: Lovecraftian · Horror · First-Person

Chants of Sennaar
Shared: Adventure · Indie · Puzzle

Samsara Room
Shared: Indie · Adventure · Puzzle