Games like 8女
Games like 8女 include Firewatch, Five Nights at Freddy's: Security Breach, Layers of Fear (2016), Little Nightmares, and Little Nightmares II. We matched them by the tags players give 8女 on Steam (Horror, Walking Simulator, Singleplayer, Adventure, and 3D): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · 3D

Layers of Fear (2016)
Shared: Horror · Walking Simulator · Singleplayer

Little Nightmares
Shared: Horror · Singleplayer · Adventure

Little Nightmares II
Shared: Horror · Singleplayer · Adventure

VERGE:Lost chapter
Shared: Horror · Walking Simulator · Adventure

Poppy Playtime
Shared: Horror · Singleplayer · Adventure

Garten of Banban
Shared: Horror · Singleplayer · 3D

Among the Sleep - Enhanced Edition
Shared: Horror · Adventure · Indie

Blair Witch
Shared: Horror · Adventure · Indie

Escape the Backrooms
Shared: Horror · Adventure · Singleplayer

MiSide
Shared: Horror · Singleplayer · 3D

Scanner Sombre
Shared: Walking Simulator · Horror · Adventure

The Beast Inside
Shared: Horror · Adventure · Singleplayer

Bad Parenting 1: Mr. Red Face
Shared: Horror · Walking Simulator · Adventure

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Singleplayer

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Adventure

The Hat Man: Shadow Ward
Shared: Horror · Adventure · Indie

From The Darkness
Shared: Horror · Walking Simulator · Indie

Fingerbones
Shared: Horror · Adventure · Indie

The Death | Thần Trùng
Shared: Horror · Adventure · Indie

Kona
Shared: Singleplayer · Adventure · Walking Simulator

Slender: The Arrival
Shared: Horror · Indie · Singleplayer

Outlast
Shared: Horror · Singleplayer · Adventure