Games like フィアリウム
Games like フィアリウム include Little Nightmares II, Stray, The Room 4: Old Sins, Five Nights at Freddy's: Into the Pit, and Rise of the Tomb Raider™. We matched them by the tags players give フィアリウム on Steam (Horror, Adventure, Hidden Object, 2D, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Little Nightmares II
Shared: Horror · Adventure · Singleplayer

Stray
Shared: Adventure · Singleplayer · Exploration

The Room 4: Old Sins
Shared: Adventure · Puzzle · Hidden Object

Five Nights at Freddy's: Into the Pit
Shared: Horror · Adventure · 2D

Rise of the Tomb Raider™
Shared: Adventure · Singleplayer · Exploration

Amnesia: Rebirth
Shared: Horror · Adventure · Action-Adventure

Atomic Heart
Shared: Adventure · Horror · Singleplayer

Poppy Playtime
Shared: Horror · Singleplayer · Puzzle

The Room
Shared: Adventure · Puzzle · Singleplayer

The Room Two
Shared: Horror · Hidden Object · Puzzle

Tomb Raider Game of the Year
Shared: Adventure · Singleplayer · Exploration

Little Nightmares
Shared: Horror · Adventure · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · Adventure

ANIMAL WELL
Shared: Exploration · Horror · Puzzle

UNCHARTED™: Legacy of Thieves Collection
Shared: Adventure · Singleplayer · Action-Adventure

Outer Wilds
Shared: Adventure · Exploration · Puzzle

Subnautica
Shared: Horror · Exploration · Adventure

Rusty Lake Paradise
Shared: Adventure · Horror · Puzzle

The Forest
Shared: Horror · Adventure · Exploration

Hello Neighbor 2
Shared: Adventure · Horror · Puzzle

Lorelei and the Laser Eyes
Shared: Adventure · Horror · Puzzle

Firework
Shared: Horror · 2D · Puzzle

LIMBO
Shared: Puzzle · Adventure · 2D

Ori and the Will of the Wisps
Shared: Adventure · Singleplayer · Exploration