Games like Toby's Topsy Tale
Games like Toby's Topsy Tale include MiSide, A Hat in Time, Outlast, Poppy Playtime, and Still Wakes the Deep. We matched them by the tags players give Toby's Topsy Tale on Steam (Psychological Horror, 3D Platformer, Lovecraftian, Platformer, and Collectathon): closest matches first, and among equally close ones the better-known games.

MiSide
Shared: Psychological Horror · Cute · Horror

A Hat in Time
Shared: 3D Platformer · Collectathon · Cute

Outlast
Shared: Psychological Horror · Horror · Singleplayer

Poppy Playtime
Shared: Singleplayer · Psychological Horror · Horror

Still Wakes the Deep
Shared: Psychological Horror · Lovecraftian · Horror

SOMA
Shared: Psychological Horror · Horror · Lovecraftian

Escape the Backrooms
Shared: Psychological Horror · Horror · 3D

No, I'm not a Human
Shared: Psychological Horror · Horror · Singleplayer

Little Nightmares
Shared: Horror · Singleplayer · Psychological Horror

Gorilla Tag
Shared: Psychological Horror · 3D Platformer · 3D

Garten of Banban
Shared: Psychological Horror · Singleplayer · Horror

Portal 2
Shared: Platformer · Singleplayer · 3D Platformer

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Singleplayer · Platformer

Little Nightmares II
Shared: Psychological Horror · Horror · Singleplayer

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

Outlast 2
Shared: Psychological Horror · Horror · Singleplayer

Ready or Not
Shared: Psychological Horror · Singleplayer · Realistic

Pumpkin Jack
Shared: 3D Platformer · Collectathon · Platformer

Subliminal
Shared: Psychological Horror · Singleplayer · Horror

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Singleplayer

Buckshot Roulette
Shared: Horror · Singleplayer · Psychological Horror

Toree 3D
Shared: 3D Platformer · Platformer · 3D

Phasmophobia
Shared: Psychological Horror · Horror · First-Person

SILENT HILL 2
Shared: Psychological Horror · Horror · Singleplayer