Games like Firmament Wars
Games like Firmament Wars include Company of Heroes 2, Wargame: Red Dragon, Age of Empires II (Retired), Call to Arms, and Rusted Warfare - RTS. We matched them by the tags players give Firmament Wars on Steam (Strategy, Indie, Multiplayer, Real-Time, and RTS): closest matches first, and among equally close ones the better-known games.
Company of Heroes 2
Shared: Strategy · Multiplayer · RTS
Wargame: Red Dragon
Shared: Strategy · RTS · Multiplayer
Age of Empires II (Retired)
Shared: Strategy · Multiplayer · RTS
Call to Arms
Shared: Strategy · Multiplayer · RTS
Rusted Warfare - RTS
Shared: Strategy · RTS · Multiplayer
Total War: WARHAMMER II
Shared: Strategy · RTS · Multiplayer
Total War: ROME II - Emperor Edition
Shared: Strategy · Multiplayer · Tactical
Warhammer 40,000: Dawn of War - Anniversary Edition (Classic)
Shared: Strategy · RTS · Multiplayer
Mechabellum
Shared: Strategy · Multiplayer · Tactical
Sid Meier’s Civilization® VI
Shared: Strategy · Multiplayer · Tactical
Command & Conquer™ Red Alert™ 3
Shared: Strategy · RTS · Multiplayer
Hearts of Iron IV
Shared: Strategy · Multiplayer · War
Bloons TD 6
Shared: Strategy · Multiplayer · Online Co-Op
Total War: THREE KINGDOMS
Shared: Strategy · RTS · Multiplayer
Broken Arrow
Shared: Strategy · RTS · Tactical
DEFCON
Shared: Strategy · Indie · Multiplayer
Total War: WARHAMMER III
Shared: Strategy · RTS · War
Plague Inc: Evolved
Shared: Strategy · Indie · Multiplayer
Men of War: Assault Squad 2
Shared: Strategy · RTS · Multiplayer
Steel Division 2
Shared: Strategy · RTS · Multiplayer
Town of Salem
Shared: Strategy · Multiplayer · Indie
Circle Empires
Shared: Strategy · Indie · RTS
ShellShock Live
Shared: Strategy · Multiplayer · Indie
Starship Troopers: Terran Command
Shared: Strategy · RTS · Tactical