Games like SCP-3008: Infinite Store
Games like SCP-3008: Infinite Store include Five Nights at Freddy's: Security Breach, The Mortuary Assistant, The Forest, Internet Cafe Simulator 2, and Escape the Backrooms. We matched them by the tags players give SCP-3008: Infinite Store on Steam (Simulation, Adventure, First-Person, Horror, and 3D): closest matches first, and among equally close ones the better-known games.

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

The Mortuary Assistant
Shared: Horror · Simulation · Supernatural

The Forest
Shared: Horror · Adventure · First-Person

Internet Cafe Simulator 2
Shared: Simulation · 3D · First-Person

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

HELLMART
Shared: Simulation · Horror · First-Person

Poppy Playtime
Shared: Horror · First-Person · Singleplayer

MiSide
Shared: Horror · First-Person · 3D

Resident Evil Requiem
Shared: Horror · First-Person · Singleplayer

Outlast
Shared: First-Person · Horror · Adventure

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

SchoolBoy Runaway
Shared: Adventure · Simulation · Horror

Slime Rancher
Shared: Adventure · First-Person · Singleplayer

Visage
Shared: Horror · First-Person · Adventure

PC Building Simulator
Shared: Simulation · First-Person · 3D

The Complex: Expedition
Shared: Horror · Adventure · Singleplayer

Crime Scene Cleaner
Shared: Simulation · First-Person · Singleplayer

Garten of Banban
Shared: Horror · First-Person · Singleplayer

Supermarket Simulator
Shared: Simulation · First-Person · Singleplayer

Buckshot Roulette
Shared: Horror · First-Person · Singleplayer

The Exit 8
Shared: Horror · First-Person · Exploration

Phasmophobia
Shared: Horror · First-Person · Supernatural

Dollmare
Shared: Simulation · Horror · First-Person

Zoochosis
Shared: 3D · Horror · Simulation