Games like The Prisoner
Games like The Prisoner include Buckshot Roulette, The Escapists, Gunpoint, Aliens: Dark Descent, and GemCraft - Chasing Shadows. We matched them by the tags players give The Prisoner on Steam (Strategy, Action, Puzzle, Sci-fi, and Psychological): closest matches first, and among equally close ones the better-known games.

Buckshot Roulette
Shared: Strategy · Dark · Psychological

The Escapists
Shared: Strategy · Action · Pixel Graphics

Gunpoint
Shared: Puzzle · Action · Strategy

Aliens: Dark Descent
Shared: Strategy · Action · Sci-fi

GemCraft - Chasing Shadows
Shared: Strategy · Action · Indie

Zombie Night Terror
Shared: Strategy · Action · Puzzle

Into the Breach
Shared: Strategy · Puzzle · Sci-fi

Inscryption
Shared: Puzzle · Strategy · Dark

Predecessor
Shared: Action · Sci-fi · PvE

Idle Champions of the Forgotten Realms
Shared: Strategy · Fantasy · Action

Door Kickers
Shared: Strategy · Action · Indie

Warhammer 40,000: Space Marine 2
Shared: Action · PvE · Sci-fi

Shovel Knight Pocket Dungeon
Shared: Action · Strategy · Puzzle

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Indie

Cortex Command
Shared: Strategy · Action · Indie

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Strategy · Dungeon Crawler · Action

The Binding of Isaac: Rebirth
Shared: Dungeon Crawler · Indie · Dark

Kingdom Rush - Tower Defense
Shared: Strategy · Action · 2D

Out There Somewhere
Shared: Puzzle · Action · Sci-fi

Infested Planet
Shared: Strategy · Action · Sci-fi

CARRION
Shared: Action · Puzzle · Pixel Graphics

Your Only Move Is HUSTLE
Shared: Action · Strategy · 2D

Space Pirates and Zombies
Shared: Action · Strategy · Sci-fi

Polarity
Shared: Puzzle · Strategy · Action