Games like Halo Wars: Definitive Edition
Games like Halo Wars: Definitive Edition include Company of Heroes 2, Warhammer 40,000: Dawn of War III, Age of Empires III: Definitive Edition, STAR WARS™ Empire at War - Gold Pack, and Total War: THREE KINGDOMS. We matched them by the tags players give Halo Wars: Definitive Edition on Steam (Strategy, RTS, Base Building, Multiplayer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Company of Heroes 2
Shared: Strategy · RTS · Multiplayer

Warhammer 40,000: Dawn of War III
Shared: Strategy · RTS · Multiplayer

Age of Empires III: Definitive Edition
Shared: Strategy · RTS · Base Building

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

Total War: THREE KINGDOMS
Shared: Strategy · RTS · War

Warhammer 40,000: Dawn of War - Anniversary Edition (Classic)
Shared: Strategy · RTS · Base Building

Hearts of Iron IV
Shared: Strategy · War · Multiplayer

Planetary Annihilation: TITANS
Shared: Strategy · RTS · Base Building

Call to Arms
Shared: Strategy · RTS · Multiplayer

Company of Heroes
Shared: Strategy · RTS · Singleplayer

Supreme Commander 2
Shared: Strategy · RTS · Multiplayer

Men of War: Assault Squad 2
Shared: Strategy · RTS · War

Command & Conquer™ Remastered Collection
Shared: Strategy · RTS · Base Building

Command & Conquer™ Red Alert™ 3
Shared: Strategy · RTS · Base Building

Supreme Commander: Forged Alliance
Shared: Strategy · RTS · Multiplayer

Warhammer 40,000: Dawn of War - Definitive Edition
Shared: Strategy · RTS · Multiplayer

Arma 3
Shared: Multiplayer · Military · Action

Command & Conquer Red Alert™ 2 and Yuri’s Revenge™
Shared: Strategy · RTS · Multiplayer

Age of Empires II (Retired)
Shared: Strategy · RTS · Multiplayer

Tempest Rising
Shared: Strategy · RTS · Base Building

Total War: WARHAMMER II
Shared: Strategy · RTS · Multiplayer

Age of Empires: Definitive Edition
Shared: Strategy · RTS · Multiplayer

Act of Aggression - Reboot Edition
Shared: Strategy · RTS · Base Building

Company of Heroes - Legacy Edition
Shared: Strategy · RTS · Multiplayer