Games like Achron
Games like Achron include STAR WARS™ Empire at War - Gold Pack, Natural Selection 2, Original War, Supreme Commander: Forged Alliance, and Rusted Warfare - RTS. We matched them by the tags players give Achron on Steam (Strategy, Indie, Time Travel, RTS, and Multiplayer): closest matches first, and among equally close ones the better-known games.

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

Natural Selection 2
Shared: Strategy · Multiplayer · RTS

Original War
Shared: Strategy · RTS · Time Travel

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

Rusted Warfare - RTS
Shared: Strategy · RTS · Indie

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

Planetary Annihilation: TITANS
Shared: Strategy · RTS · Multiplayer

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

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

5D Chess With Multiverse Time Travel
Shared: Time Travel · Time Manipulation · Strategy

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

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

Mount & Blade II: Bannerlord
Shared: Strategy · Multiplayer · Indie

Stellaris
Shared: Strategy · Sci-fi · Multiplayer

Homeworld Remastered Collection
Shared: Strategy · RTS · Sci-fi

Halo Wars: Definitive Edition
Shared: Strategy · RTS · Multiplayer

Company of Heroes 2
Shared: Strategy · RTS · Multiplayer

Homeworld: Deserts of Kharak
Shared: Strategy · RTS · Multiplayer

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

Supreme Commander 2
Shared: Strategy · RTS · Multiplayer

Plague Inc: Evolved
Shared: Strategy · Indie · Multiplayer

Grey Goo
Shared: Strategy · RTS · Multiplayer

Circle Empires
Shared: Strategy · Indie · RTS

Silica
Shared: Strategy · RTS · Multiplayer