Games like Hello Operator
Games like Hello Operator include Strange Horticulture, The Operator, The Case of the Golden Idol, Strange Antiquities, and The Rise of the Golden Idol. We matched them by the tags players give Hello Operator on Steam (Simulation, Mystery, Dark, Adventure, and Real Time Tactics): closest matches first, and among equally close ones the better-known games.

Strange Horticulture
Shared: Mystery · Dark · Puzzle

The Operator
Shared: Mystery · Simulation · Detective

The Case of the Golden Idol
Shared: Mystery · Puzzle · Detective

Strange Antiquities
Shared: Mystery · Dark · Puzzle

The Rise of the Golden Idol
Shared: Mystery · Adventure · Puzzle

The Room
Shared: Mystery · Puzzle · Adventure

Sherlock Holmes: Crimes and Punishments
Shared: Mystery · Adventure · Detective

The Room Two
Shared: Mystery · Puzzle · Adventure

Sherlock Holmes: The Devil's Daughter
Shared: Adventure · Mystery · Detective

The Room Three
Shared: Mystery · Adventure · Puzzle

Cyber Manhunt
Shared: Simulation · Mystery · Puzzle

Unheard - Voices of Crime
Shared: Mystery · Detective · Puzzle

Return of the Obra Dinn
Shared: Mystery · Puzzle · Detective

Sally Face - Episode One
Shared: Dark · Mystery · Adventure

The Roottrees are Dead
Shared: Mystery · Puzzle · Detective

Cyber Manhunt 2: New World - The Hacking Simulator
Shared: Mystery · Puzzle · Detective

The Rewinder
Shared: Mystery · Adventure · Puzzle

Chants of Sennaar
Shared: Adventure · Puzzle · Detective

Murdered: Soul Suspect
Shared: Mystery · Adventure · Detective

Murders on the Yangtze River
Shared: Adventure · Mystery · Puzzle

L.A. Noire
Shared: Adventure · Mystery · Detective

Blue Prince
Shared: Mystery · Puzzle · Adventure

Poppy Playtime
Shared: Puzzle · Dark · Mystery

The White Door
Shared: Adventure · Puzzle · Mystery