Reborn as a Space Mouse

Multiple Inner Worlds + the Myriad Worlds + Multiverses

Planar War: The Protagonist Leads an Army on Campaign Across the Heavens

Stories about wars between planes.

Any Lord-Building Novels with Armies Raised by the Millions?

Looking for books similar to The Age of Lords: Unlimited Recruitment.

Any Long, Satisfying Novels About Summoning an Army of Troops?

System, Mass Troop Deployment, Conquering All Kinds of Worlds

The Conqueror

Any Novels About Building Armies and Fighting?

Games

Looking for Military-Build-Up Stories with Insectoid, Machine, Undead, or Similar Races

The Sky-Shattering Decree is here! Who dares refuse to hand it over!