Games like Anomaly Hunter - Observation Duty
Games like Anomaly Hunter - Observation Duty include Five Nights at Freddy's: Security Breach, DREDGE, Internet Cafe Simulator 2, A Game About Digging A Hole, and BidKing. We matched them by the tags players give Anomaly Hunter - Observation Duty on Steam (Simulation, Trivia, Exploration, 3D, and Horror): closest matches first, and among equally close ones the better-known games.

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

DREDGE
Shared: Exploration · Inventory Management · Simulation

Internet Cafe Simulator 2
Shared: Simulation · Exploration · 3D

A Game About Digging A Hole
Shared: Exploration · Simulation · Horror

BidKing
Shared: Simulation · Trivia · Strategy

Escape the Backrooms
Shared: Horror · Exploration · 3D

DAVE THE DIVER
Shared: Exploration · Simulation · Adventure

Grunn
Shared: Simulation · Horror · Choices Matter

Shipwrecked 64
Shared: Horror · Exploration · 3D

Slime Rancher
Shared: Exploration · Simulation · Adventure

Summon
Shared: Simulation · Horror · Exploration

CARIMARA: Beneath the forlorn limbs
Shared: Exploration · Horror · 3D

Beholder
Shared: Choices Matter · Simulation · Strategy

This War of Mine
Shared: Simulation · Choices Matter · Strategy

HELLMART
Shared: Simulation · Horror · Exploration

SchoolBoy Runaway
Shared: Simulation · Horror · 3D

Outer Wilds
Shared: Exploration · Adventure · Story Rich

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · 3D

Killer Frequency
Shared: Horror · Simulation · Exploration

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

Disney Dreamlight Valley
Shared: Exploration · Simulation · Adventure

The Complex: Expedition
Shared: Exploration · Horror · Simulation

Thief Simulator
Shared: Simulation · Stealth · Singleplayer

R.E.P.O.
Shared: Horror · 3D · Exploration