Games like Cro Magnon
Games like Cro Magnon include Rusted Warfare - RTS, Circle Empires, Creeper World 3: Arc Eternal, Tooth and Tail, and Wargame: Red Dragon. We matched them by the tags players give Cro Magnon on Steam (Indie, Early Access, Strategy, and RTS): closest matches first, and among equally close ones the better-known games.

Rusted Warfare - RTS
Shared: Strategy · RTS · Indie

Circle Empires
Shared: Indie · Strategy · RTS

Creeper World 3: Arc Eternal
Shared: Indie · Strategy · RTS

Tooth and Tail
Shared: Strategy · Indie · RTS

Wargame: Red Dragon
Shared: Strategy · RTS · Indie

Slay the Spire 2
Shared: Strategy · Indie · Early Access

Shadow Tactics: Blades of the Shogun
Shared: Strategy · Indie · RTS

Invasion Machine
Shared: Strategy · Indie · RTS

RIOT: Civil Unrest
Shared: Indie · Strategy · RTS

Plague Inc: Evolved
Shared: Strategy · Indie · Early Access

Buoyancy
Shared: Indie · Strategy · Early Access

Infection Free Zone
Shared: Strategy · RTS · Indie

Battle Realms: Zen Edition
Shared: Strategy · RTS · Early Access

Ultimate Admiral: Age of Sail
Shared: Strategy · Indie · RTS

WARSHIFT
Shared: Strategy · Indie · RTS

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

Meridian: New World
Shared: Indie · Strategy · RTS

Silica
Shared: RTS · Strategy · Early Access

8-Bit Armies
Shared: Indie · Strategy · RTS

Battle of Empires : 1914-1918
Shared: Strategy · RTS · Indie

Infested Planet
Shared: Strategy · Indie · RTS

Total War: WARHAMMER III
Shared: Strategy · RTS

Warpips
Shared: Strategy · RTS · Indie

Timber and Stone
Shared: Indie · Strategy · Early Access