Best RTS Games on Steam

Real-time strategy never really went away — it just got sharper. Whether you want base-building and army micro, grand historical battles, or co-op survival against endless hordes, Steam has the deepest RTS library anywhere. These are the standouts, and most come with meaty achievement lists tied to campaign missions, difficulty clears and multiplayer feats — great long-term completion projects for strategy fans.

1

Age of Empires IV

The modern flagship of the genre. Gorgeous historical campaigns, eight-plus civilisations, and a stack of achievements including some clever "do this in a single match" challenges.

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2

Age of Empires II: Definitive Edition

The all-time classic, remastered and still actively updated. An enormous campaign list makes for one of the biggest, most rewarding 100% runs in RTS.

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3

Total War: WARHAMMER III

Grand-scale battles meets the Warhammer world. Massive, with achievements spanning every faction and campaign — a huge but hugely satisfying target.

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4

Company of Heroes 3

Tactical WWII combat with a dynamic campaign map. Achievements reward mastering its cover and combined-arms systems.

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5

They Are Billions

Base-building survival against zombie hordes. Brutal, tense, and its achievements are a real badge of honour.

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6

Northgard

A tighter, approachable Viking RTS about territory and resources. A friendlier entry point with a well-paced achievement path.

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7

Homeworld 3

Full 3D space RTS with cinematic fleet battles — the long-awaited return of a beloved series for something different.

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Updated 2026-07-23. Every game links to its full SteamVault page with achievement stats, rarity and community completion times.