Games like Iron Sky: Invasion - The Second Fleet
Games like Iron Sky: Invasion - The Second Fleet include Stellaris, Jurassic World Evolution 3, Men of War: Assault Squad 2, Hell Let Loose: Vietnam, and SPORE™ Galactic Adventures. We matched them by the tags players give Iron Sky: Invasion - The Second Fleet on Steam (Strategy, Action, Simulation, Sci-fi, and Downloadable Content): closest matches first, and among equally close ones the better-known games.

Stellaris
Shared: Strategy · Sci-fi · Simulation

Jurassic World Evolution 3
Shared: Strategy · Simulation · Action

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

Hell Let Loose: Vietnam
Shared: Action · Strategy · Simulation

SPORE™ Galactic Adventures
Shared: Action · Simulation · Strategy

Jurassic World Evolution
Shared: Simulation · Strategy · Sci-fi

X Rebirth
Shared: Simulation · Action · Sci-fi

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Sci-fi · Action

Warhammer 40,000: Dawn of War III
Shared: Strategy · Action · Sci-fi

Arma 3
Shared: Action · Simulation · Strategy

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Simulation

Total Tank Simulator
Shared: Strategy · Action · Simulation

Arma Reforger
Shared: Simulation · Action · Strategy

Arma 2: Operation Arrowhead
Shared: Simulation · Action · Strategy

Halo Wars: Definitive Edition
Shared: Strategy · Sci-fi · Action

Aliens: Dark Descent
Shared: Strategy · Action · Sci-fi

Shieldwall
Shared: Action · Simulation · Strategy

We Who Are About To Die
Shared: Action · Strategy · Simulation

Police Stories
Shared: Strategy · Action · Simulation

Your Only Move Is HUSTLE
Shared: Action · Strategy · Simulation

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

Space Rangers HD: A War Apart
Shared: Strategy · Simulation · Action

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Action

Call to Arms
Shared: Strategy · Action · Simulation