HOI4: Australia Overpowered
Last verified: 2026-09-05
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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_SLOTSraised from 25 to 50
Not cored: the Philippines, the Dutch East Indies (other than New Guinea), Japan's home islands, Okinawa and Taiwan.
Links
- 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
- Deploy and launch HOI4
- Enable the mod, start a game to verify
- Launcher > Mods > Mod Tools > Upload a Mod
- Select "Australia Overpowered", add a description, upload
- Change visibility from Private to Public on the Workshop page