Games like Project Chameleon
Games like Project Chameleon include Gunpoint, Mark of the Ninja, Mark of the Ninja: Remastered, DEADBOLT, and CrossCode. We matched them by the tags players give Project Chameleon on Steam (Stealth, Puzzle, 2D, Pixel Graphics, and Espionage): closest matches first, and among equally close ones the better-known games.
Gunpoint
Shared: Stealth · Puzzle · 2D
Mark of the Ninja
Shared: Stealth · 2D · Ninja
Mark of the Ninja: Remastered
Shared: Stealth · 2D · Ninja
DEADBOLT
Shared: Stealth · Pixel Graphics · 2D
CrossCode
Shared: Pixel Graphics · Puzzle · Female Protagonist
Party Hard
Shared: Stealth · Pixel Graphics · Strategy
Shadow Tactics: Blades of the Shogun
Shared: Stealth · Strategy · Ninja
The Escapists
Shared: Pixel Graphics · 2D · Strategy
Out There Somewhere
Shared: Puzzle · Pixel Graphics · 2D
Hitman: Absolution
Shared: Stealth · Assassins · Shooter
Hitman: Blood Money
Shared: Stealth · Puzzle · Assassins
Celeste
Shared: Pixel Graphics · 2D · Female Protagonist
The Escapists 2
Shared: Pixel Graphics · 2D · Strategy
HITMAN World of Assassination
Shared: Stealth · Assassins · Singleplayer
Broforce
Shared: Pixel Graphics · 2D · Action
Papers, Please
Shared: Pixel Graphics · Puzzle · 2D
Portal 2
Shared: Puzzle · Female Protagonist · Singleplayer
Rise of the Tomb Raider™
Shared: Female Protagonist · Puzzle · Stealth
Portal
Shared: Puzzle · Female Protagonist · Sci-fi
CARRION
Shared: Pixel Graphics · 2D · Puzzle
ANIMAL WELL
Shared: Puzzle · Pixel Graphics · 2D
Baba Is You
Shared: Puzzle · Pixel Graphics · 2D
Defy Gravity Extended
Shared: Puzzle · 2D · Indie
Tomb Raider Game of the Year
Shared: Female Protagonist · Puzzle · Action