Games like Empire Earth III
Games like Empire Earth III include Company of Heroes 3, Creeper World 4, Age of History 3, Empire Earth: Gold Edition, and Broken Arrow. We matched them by the tags players give Empire Earth III on Steam (Strategy, RTS, Wargame, Top-Down, and Building): closest matches first, and among equally close ones the better-known games.

Company of Heroes 3
Shared: Strategy · Wargame · RTS

Creeper World 4
Shared: Wargame · RTS · Strategy

Age of History 3
Shared: Strategy · Wargame · RTS

Empire Earth: Gold Edition
Shared: Strategy · RTS · Wargame

Broken Arrow
Shared: Strategy · Wargame · RTS

Regiments
Shared: Strategy · Wargame · RTS

Wargame: Red Dragon
Shared: Strategy · RTS · Wargame

Aliens: Dark Descent
Shared: Strategy · RTS · Top-Down

Starship Troopers: Terran Command
Shared: Strategy · RTS · Singleplayer

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

Planetary Annihilation: TITANS
Shared: Strategy · RTS · Singleplayer

Age of Empires III: Definitive Edition
Shared: Strategy · RTS · Singleplayer

Age of Mythology: Retold
Shared: Strategy · RTS · Singleplayer

Tempest Rising
Shared: Strategy · RTS · Singleplayer

IDUN - Frontline Survival
Shared: Wargame · Strategy · Building

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

Master of Command
Shared: Strategy · RTS · Wargame

Steel Division 2
Shared: Strategy · RTS · Singleplayer

ICBM: Escalation
Shared: RTS · Wargame · Strategy

They Are Billions
Shared: Strategy · RTS · Building

Company of Heroes 2
Shared: Strategy · RTS · Singleplayer

Cartel Tycoon
Shared: RTS · Top-Down · Strategy

Commandos: Origins
Shared: Strategy · RTS · Wargame

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