Games like サチコの七不思議
Games like サチコの七不思議 include Poppy Playtime, Garten of Banban, Layers of Fear (2016), MiSide, and The Exit 8. We matched them by the tags players give サチコの七不思議 on Steam (Walking Simulator, Psychological Horror, Horror, Hidden Object, and Puzzle): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · Psychological Horror

Garten of Banban
Shared: Horror · Psychological Horror · Puzzle

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

MiSide
Shared: Psychological Horror · Horror · First-Person

The Exit 8
Shared: Walking Simulator · Horror · Puzzle

The Death | Thần Trùng
Shared: Psychological Horror · Horror · Puzzle

Platform 8
Shared: Psychological Horror · Walking Simulator · Puzzle

Garten of Banban 2
Shared: Horror · Psychological Horror · Puzzle

The Room Two
Shared: Puzzle · Hidden Object · Horror

Escape the Backrooms
Shared: Horror · Psychological Horror · First-Person

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

Little Nightmares II
Shared: Horror · Puzzle · Psychological Horror

Outlast
Shared: Horror · Psychological Horror · First-Person

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

The Room Three
Shared: Puzzle · Hidden Object · Adventure

Garten of Banban 3
Shared: Horror · Psychological Horror · Puzzle

Scanner Sombre
Shared: Walking Simulator · Horror · Psychological Horror

SOMA
Shared: Psychological Horror · Horror · First-Person

SchoolBoy Runaway
Shared: Puzzle · Horror · Adventure

Buckshot Roulette
Shared: Horror · First-Person · Psychological Horror

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Puzzle

Still Wakes the Deep
Shared: Psychological Horror · Horror · Walking Simulator

What Remains of Edith Finch
Shared: Walking Simulator · First-Person · Psychological Horror

Blair Witch
Shared: Horror · Psychological Horror · Walking Simulator