Novels like Kingdom of Iron: Tyrant's Fall

All share Kingdom Building, War and Military and Strategy

Chronicles of an Isekai'd Legion: For the Glory of Rome

Reroll Saga: I Brought Sarcasm To A Sword Fight

DESIRE TO BE STRONGEST

Extra’s Mantle: Wait, What Do You Mean I Shouldn’t Exist?!

The Snake Will Smoke in Another World: Path of the Blade

Inexorable Chaos (COMPLETE)

SYSTELIA: Becoming a Vagabond in Another World with a Unique System

Project Genesis online : VRMMORPG

Sovereign Harvest