Games like Ghost Hunter
Games like Ghost Hunter include Journey, ABZU, A Short Hike, A Plague Tale: Requiem, and Superflight. We matched them by the tags players give Ghost Hunter on Steam (Exploration, Relaxing, Arcade, Atmospheric, and PvE): closest matches first, and among equally close ones the better-known games.

Journey
Shared: Atmospheric · Exploration · Relaxing

ABZU
Shared: Relaxing · Exploration · Atmospheric

A Short Hike
Shared: Exploration · Relaxing · Casual

A Plague Tale: Requiem
Shared: Exploration · Action-Adventure · Atmospheric

Superflight
Shared: Relaxing · Atmospheric · Casual

Flower
Shared: Relaxing · Atmospheric · Exploration

Dungeons of Hinterberg
Shared: Relaxing · Exploration · Atmospheric

Carto
Shared: Exploration · Relaxing · Atmospheric

Disney Dreamlight Valley
Shared: Relaxing · Exploration · Character Customization

Chill with You : Lo-Fi Story
Shared: Relaxing · Atmospheric · Casual

Hoa
Shared: Relaxing · Atmospheric · Exploration

Kena: Bridge of Spirits
Shared: Exploration · Action-Adventure · Atmospheric

Rise of the Tomb Raider™
Shared: Exploration · Female Protagonist · Action-Adventure

Submerged
Shared: Exploration · Relaxing · Female Protagonist

Raji: An Ancient Epic
Shared: Relaxing · Exploration · Action-Adventure

Hamster Hunter
Shared: Exploration · Arcade · Action-Adventure

AER Memories of Old
Shared: Exploration · Relaxing · Atmospheric

Tomb Raider Game of the Year
Shared: Exploration · Female Protagonist · Adventure

Slime Rancher 2
Shared: Relaxing · Casual · Cute

Outer Wilds
Shared: Exploration · Atmospheric · Mystery

Monument Valley
Shared: Relaxing · Exploration · Casual

FANTASY LIFE i: The Girl Who Steals Time
Shared: Casual · Exploration · Action-Adventure

Stray
Shared: Atmospheric · Exploration · Adventure

PEAK
Shared: Exploration · Atmospheric · Adventure