Games like Security 51
Games like Security 51 include Papers, Please, Strange Horticulture, The Test, Cyber Manhunt 2: New World - The Hacking Simulator, and That's not my Neighbor. We matched them by the tags players give Security 51 on Steam (Simulation, Point & Click, Choices Matter, Puzzle, and Horror): closest matches first, and among equally close ones the better-known games.

Papers, Please
Shared: Simulation · Point & Click · Puzzle

Strange Horticulture
Shared: Puzzle · Point & Click · Simulation

The Test
Shared: Simulation · Choices Matter · Multiple Endings

Cyber Manhunt 2: New World - The Hacking Simulator
Shared: Point & Click · Puzzle · Detective

That's not my Neighbor
Shared: Point & Click · Choices Matter · Simulation

The Case of the Golden Idol
Shared: Puzzle · Point & Click · Investigation

The Test: Hypothesis Rising
Shared: Simulation · Choices Matter · Horror

The Rewinder
Shared: Puzzle · Point & Click · Detective

Please, Don’t Touch Anything
Shared: Puzzle · Point & Click · Pixel Graphics

SIMULACRA
Shared: Point & Click · Horror · Detective

The Roottrees are Dead
Shared: Point & Click · Puzzle · Detective

Strange Antiquities
Shared: Puzzle · Point & Click · Simulation

Beholder Conductor
Shared: Choices Matter · Point & Click · Simulation

Sherlock Holmes: Crimes and Punishments
Shared: Detective · Puzzle · Investigation

Death and Taxes
Shared: Simulation · Choices Matter · Point & Click

The Room
Shared: Point & Click · Puzzle · Horror

Cube Escape Collection
Shared: Point & Click · Puzzle · Horror

The Operator
Shared: Puzzle · Investigation · Detective

Orwell: Keeping an Eye On You
Shared: Simulation · Choices Matter · Investigation

There Is No Game: Wrong Dimension
Shared: Point & Click · Puzzle · Pixel Graphics

Endacopia
Shared: Point & Click · Horror · Puzzle

The Room Two
Shared: Point & Click · Puzzle · Horror

OneShot
Shared: Puzzle · Choices Matter · Pixel Graphics

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

