Games like Civitas Nova
Games like Civitas Nova include Plague Inc: Evolved, Touhou Big Big Battle, Game Dev Tycoon, Totally Accurate Battle Simulator, and RIOT: Civil Unrest. We matched them by the tags players give Civitas Nova on Steam (Strategy, Indie, Simulation, Early Access, and RTS): closest matches first, and among equally close ones the better-known games.

Plague Inc: Evolved
Shared: Strategy · Simulation · Indie

Touhou Big Big Battle
Shared: Strategy · Indie · Early Access

Game Dev Tycoon
Shared: Indie · Simulation · Strategy

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Indie

RIOT: Civil Unrest
Shared: Strategy · Indie · Simulation

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

8-Bit Armies
Shared: Strategy · Indie · Simulation

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

Banished
Shared: Strategy · Simulation · Indie

Startup Company
Shared: Simulation · Strategy · Indie

Mini Motorways
Shared: Strategy · Simulation · Indie

Men of War: Assault Squad 2
Shared: Strategy · Simulation · RTS

Infection Free Zone
Shared: Strategy · Simulation · RTS

Invasion Machine
Shared: Strategy · Simulation · Indie

Wargame: Red Dragon
Shared: Strategy · RTS · Simulation

911 Operator
Shared: Strategy · Simulation · Indie

The Political Process
Shared: Strategy · Simulation · Indie

EmergeNYC
Shared: Simulation · Early Access · Strategy

Door Kickers
Shared: Strategy · Simulation · Indie

Ultimate General: Gettysburg
Shared: Strategy · Simulation · RTS

Steel Division 2
Shared: Strategy · RTS · Simulation

Ultimate Epic Battle Simulator 2
Shared: Strategy · Simulation · RTS

Crusader Kings III
Shared: Strategy · Simulation · RTS

Oriental Empires
Shared: Strategy · Indie · Simulation