Kyle Pericak

"It works in my environment"

HOI4: Australia Overpowered

Last verified: 2026-09-05

Australia Overpowered thumbnail

Sibling of Canada Overpowered: same gigalopolis treatment, but the cores go across the Pacific instead of across North America.

What the mod does

  • Adds a custom gigalopolis state category with 50 building slots (vanilla megalopolis has 12)
  • All 20 Australian-owned states (mainland, Tasmania, Papua, New Guinea, Bismarck, Bougainville, Nauru) set to gigalopolis with 10M manpower and 500 of every resource
  • Per-building caps raised to 50 (factories, dockyards, etc.)
  • Australia gets cores on 34 Pacific island states: New Zealand, Fiji, the Solomons, New Caledonia, Tahiti, the Japanese mandate islands, Hawaii and the US Pacific outposts, Dutch New Guinea, Easter Island and the Galapagos — full manpower, no resistance when conquered
  • Vanilla buildings preserved — normal 1936 layout with 50 open slots to build into
  • "She'll Be Right" national spirit: +3 political power/day, +25% stability, +25% war support
  • Every country starts with +100 opinion of Australia
  • Global MAX_SHARED_SLOTS raised from 25 to 50

Not cored: the Philippines, the Dutch East Indies (other than New Guinea), Japan's home islands, Okinawa and Taiwan.

  • Steam Workshop: not yet uploaded
  • Repo: apps/mods/hoi4/australia-overpowered/

Deploy

apps/mods/hoi4/australia-overpowered/scripts/deploy.sh

Copies the mod into ~/Documents/Paradox Interactive/Hearts of Iron IV/mod/. Launch HOI4 and enable "Australia Overpowered" in the launcher.

Rebuild from vanilla

If vanilla game files update:

python3 apps/mods/hoi4/australia-overpowered/scripts/build.py
python3 apps/mods/hoi4/australia-overpowered/scripts/validate.py

Steam Workshop upload

  1. Deploy and launch HOI4
  2. Enable the mod, start a game to verify
  3. Launcher > Mods > Mod Tools > Upload a Mod
  4. Select "Australia Overpowered", add a description, upload
  5. Change visibility from Private to Public on the Workshop page