Games like Unlock
Games like Unlock include Papers, Please, HackHub - Ultimate Hacker Simulator, Cyber Manhunt, Mini Metro, and There Is No Game: Wrong Dimension. We matched them by the tags players give Unlock on Steam (Simulation, Interactive Fiction, Puzzle, Typing, and Hidden Object): closest matches first, and among equally close ones the better-known games.

Papers, Please
Shared: Simulation · Puzzle · Indie

HackHub - Ultimate Hacker Simulator
Shared: Simulation · Puzzle · Typing

Cyber Manhunt
Shared: Simulation · Puzzle · Indie

Mini Metro
Shared: Puzzle · Simulation · 2D

There Is No Game: Wrong Dimension
Shared: Puzzle · Indie · Interactive Fiction

Firework
Shared: Puzzle · 2D · Indie

When The Past Was Around
Shared: Hidden Object · Interactive Fiction · Puzzle

Bridge Constructor Portal
Shared: Simulation · Puzzle · 2D

s.p.l.i.t
Shared: Simulation · Interactive Fiction · Typing

Her Story
Shared: Interactive Fiction · Typing · Puzzle

Opus Magnum
Shared: Puzzle · Simulation · Indie

Mandate Of Heaven
Shared: Simulation · Puzzle · Interactive Fiction

Freeways
Shared: Simulation · Puzzle · 2D

The Escapists
Shared: Simulation · 2D · Puzzle

Storyteller
Shared: Puzzle · Interactive Fiction · 2D

Game Dev Tycoon
Shared: Simulation · Indie · 2D

Hidden Folks
Shared: Hidden Object · Puzzle · Indie

Malware
Shared: Simulation · Puzzle · Hidden Object

LIMBO
Shared: Puzzle · 2D · Indie

Killer Frequency
Shared: Puzzle · Interactive Fiction · Simulation

Plague Inc: Evolved
Shared: Simulation · Indie · Singleplayer

鬼谷八荒 Tale of Immortal
Shared: Simulation · Singleplayer · 2D

Uplink
Shared: Simulation · Puzzle · Indie

Poly Bridge
Shared: Simulation · Puzzle · Singleplayer