Games like Our Little Friend
Games like Our Little Friend include Five Nights at Freddy's: Security Breach, Cookie Clicker, Buckshot Roulette, Escape the Backrooms, and MiSide. We matched them by the tags players give Our Little Friend on Steam (Casual, 3D, First-Person, Pixel Graphics, and Horror): closest matches first, and among equally close ones the better-known games.

Five Nights at Freddy's: Security Breach
Shared: Horror · First-Person · Singleplayer

Cookie Clicker
Shared: Casual · Horror · Pixel Graphics

Buckshot Roulette
Shared: First-Person · Horror · 3D

Escape the Backrooms
Shared: Horror · First-Person · 3D

MiSide
Shared: First-Person · Horror · 3D

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

Garten of Banban
Shared: First-Person · Horror · 3D

Please, Don’t Touch Anything
Shared: Pixel Graphics · Indie · Casual

Papers, Please
Shared: Pixel Graphics · Indie · Multiple Endings

Liars Bar
Shared: Casual · 3D · Indie

Poppy Playtime
Shared: Horror · First-Person · Singleplayer

Mirror 2: Project X
Shared: 3D · Casual · Multiple Endings

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

Berry Bury Berry
Shared: 3D · First-Person · Casual

That's not my Neighbor
Shared: Casual · Horror · Indie

PowerWash Simulator
Shared: Casual · First-Person · 3D

IMSCARED
Shared: Horror · Pixel Graphics · First-Person

Undertale
Shared: Pixel Graphics · Multiple Endings · Singleplayer

CloverPit
Shared: First-Person · 3D · Horror

Dead Bits
Shared: Casual · Indie · First-Person

MUSYNX
Shared: Casual · Indie · Singleplayer

Five Nights at Freddy's: Secret of the Mimic
Shared: First-Person · Horror · 3D

Choo-Choo Charles
Shared: First-Person · Horror · 3D

Outlast
Shared: First-Person · Horror · Singleplayer