Games like The Faction
Games like The Faction include Dishonored, Ready or Not, Dishonored 2, Grand Theft Auto V Legacy, and Thief Simulator. We matched them by the tags players give The Faction on Steam (Strategy, Realistic, First-Person, Atmospheric, and Crime): closest matches first, and among equally close ones the better-known games.

Dishonored
Shared: First-Person · Assassins · Stealth

Ready or Not
Shared: Realistic · First-Person · Singleplayer

Dishonored 2
Shared: First-Person · Stealth · Assassins

Grand Theft Auto V Legacy
Shared: Crime · First-Person · Action

Thief Simulator
Shared: First-Person · Crime · Stealth

Arma 3
Shared: Realistic · First-Person · Action

Shadow Tactics: Blades of the Shogun
Shared: Strategy · Stealth · Assassins

Hitman: Absolution
Shared: Assassins · Stealth · Action

Crime Scene Cleaner
Shared: Crime · First-Person · Atmospheric

Thief Simulator 2
Shared: Crime · First-Person · Stealth

Insurgency
Shared: Realistic · First-Person · Strategy

Squad
Shared: Realistic · First-Person · Military

Thief
Shared: First-Person · Stealth · Action

Call of Duty®
Shared: First-Person · Singleplayer · Action

911 Operator
Shared: Strategy · Realistic · Singleplayer

Arma Reforger
Shared: Realistic · Strategy · First-Person

Hell Let Loose
Shared: Realistic · Singleplayer · First-Person

PAYDAY 2
Shared: Action · Crime · Stealth

Insurgency: Sandstorm
Shared: Realistic · First-Person · Action

Desperados III
Shared: Strategy · Stealth · Assassins

Red Dead Redemption 2
Shared: Realistic · Action · Singleplayer

Drug Dealer Simulator
Shared: Crime · Action · Singleplayer

Kingdom Come: Deliverance II
Shared: First-Person · Realistic · Singleplayer

Far Cry® 2
Shared: First-Person · Realistic · Action