Games like Turnament
Games like Turnament include Homeworld: Deserts of Kharak, Homeworld Remastered Collection, Command & Conquer 3 Tiberium Wars™, Warhammer 40,000: Dawn of War III, and Lost in Play. We matched them by the tags players give Turnament on Steam (RTS, Puzzle, 2D, Strategy, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Homeworld: Deserts of Kharak
Shared: RTS · Strategy · Story Rich

Homeworld Remastered Collection
Shared: RTS · Strategy · Atmospheric

Command & Conquer 3 Tiberium Wars™
Shared: RTS · Strategy · Level Editor

Warhammer 40,000: Dawn of War III
Shared: RTS · Strategy · Sci-fi

Lost in Play
Shared: Puzzle · 2D · Funny

Portal 2
Shared: Puzzle · Funny · Story Rich

Portal
Shared: Puzzle · Funny · Sci-fi

Homeworld 3
Shared: RTS · Strategy · Story Rich

Brothers - A Tale of Two Sons
Shared: Atmospheric · Puzzle · Controller

STAR WARS™ Empire at War - Gold Pack
Shared: RTS · Strategy · Sci-fi

Microcosmum: survival of cells
Shared: RTS · Puzzle · Atmospheric

Word Game
Shared: Puzzle · Strategy · 2D

The Swapper
Shared: Puzzle · Atmospheric · 2D

Machinarium
Shared: Puzzle · 2D · Atmospheric

Gunpoint
Shared: Puzzle · 2D · Strategy

Bridge Constructor Portal
Shared: Puzzle · Strategy · 2D

Valiant Hearts: The Great War™ / Soldats Inconnus : Mémoires de la Grande Guerre™
Shared: Atmospheric · 2D · Puzzle

Total War: WARHAMMER III
Shared: RTS · Strategy · Atmospheric

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: 2D · Funny · Story Rich

STAR WARS™ Galactic Battlegrounds Saga
Shared: RTS · Strategy · 2D

The Talos Principle
Shared: Puzzle · Atmospheric · Story Rich

OneShot
Shared: Puzzle · Story Rich · Atmospheric

Outer Wilds
Shared: Puzzle · Atmospheric · Story Rich

Zuma Deluxe
Shared: Puzzle · 2D · Strategy