Games like The Unknown
Games like The Unknown include Portal 2, Portal, Little Nightmares II, Little Nightmares, and MiSide. We matched them by the tags players give The Unknown on Steam (Puzzle Platformer, Psychological Horror, 3D Platformer, Immersive Sim, and Puzzle): closest matches first, and among equally close ones the better-known games.
Portal 2
Shared: Puzzle · Platformer · Puzzle Platformer
Portal
Shared: Puzzle Platformer · Puzzle · 3D Platformer
Little Nightmares II
Shared: Puzzle · Psychological Horror · Horror
Little Nightmares
Shared: Puzzle Platformer · Horror · Puzzle
MiSide
Shared: Psychological Horror · First-Person · Horror
Viewfinder
Shared: Puzzle Platformer · Puzzle · First-Person
Poppy Playtime
Shared: Puzzle · Horror · Psychological Horror
The Exit 8
Shared: Puzzle · Psychological Horror · Immersive Sim
INSIDE
Shared: Puzzle Platformer · Horror · Singleplayer
LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer
Indiana Jones and the Great Circle
Shared: Puzzle · First-Person · Action-Adventure
In Sound Mind
Shared: Psychological Horror · Puzzle · Horror
Garten of Banban
Shared: Psychological Horror · Horror · First-Person
Trine 3: The Artifacts of Power
Shared: Puzzle Platformer · 3D Platformer · Action-Adventure
The Talos Principle 2
Shared: Puzzle · Puzzle Platformer · First-Person
Superliminal
Shared: Puzzle · First-Person · Psychological Horror
Hello Neighbor
Shared: Horror · First-Person · 3D Platformer
Amnesia: Rebirth
Shared: Puzzle · First-Person · Action-Adventure
Supraland
Shared: Puzzle Platformer · First-Person · Puzzle
Hello Neighbor 2
Shared: Puzzle · First-Person · Horror
Resident Evil 7 Biohazard
Shared: Horror · First-Person · Psychological Horror
Escape the Backrooms
Shared: Psychological Horror · Horror · First-Person
Mirror's Edge™
Shared: 3D Platformer · First-Person · Action-Adventure
SOMA
Shared: Psychological Horror · Horror · First-Person