Games like Noir Syndrome
Games like Noir Syndrome include Stoneshard, Dungeon of the ENDLESS™, Back to the Dawn, Murders on the Yangtze River, and Magicite. We matched them by the tags players give Noir Syndrome on Steam (Indie, Adventure, RPG, Noir, and Detective): closest matches first, and among equally close ones the better-known games.

Stoneshard
Shared: RPG · Pixel Graphics · Roguelike

Dungeon of the ENDLESS™
Shared: Indie · RPG · Pixel Graphics

Back to the Dawn
Shared: RPG · Pixel Graphics · Detective

Murders on the Yangtze River
Shared: Adventure · Indie · Detective

Magicite
Shared: Indie · RPG · Adventure

Streets of Rogue
Shared: RPG · Pixel Graphics · Indie

Tales of the Black Forest
Shared: RPG · Indie · Adventure

Shadows of Doubt
Shared: Detective · Noir · Procedural Generation

To the Moon
Shared: Indie · Adventure · Pixel Graphics

The Rewinder
Shared: Adventure · Pixel Graphics · Mystery

Roadwarden
Shared: RPG · Adventure · Indie

Unavowed
Shared: Adventure · Indie · Pixel Graphics

Moonlighter
Shared: Pixel Graphics · RPG · Adventure

Kathy Rain
Shared: Adventure · Indie · Pixel Graphics

Hero Siege
Shared: RPG · Pixel Graphics · Indie

UnderMine
Shared: Indie · RPG · Pixel Graphics

OMORI
Shared: Indie · RPG · Pixel Graphics

Sanfu
Shared: RPG · Adventure · Mystery

Graveyard Keeper
Shared: RPG · Pixel Graphics · Indie

L.A. Noire
Shared: Detective · Adventure · Noir

Noita
Shared: Indie · Pixel Graphics · Roguelike

Dead Cells
Shared: Adventure · Pixel Graphics · Roguelike

The Binding of Isaac: Rebirth
Shared: Indie · Roguelike · Pixel Graphics

Disco Elysium - The Final Cut
Shared: RPG · Detective · Noir