Harmony / MissingMethodException
Match game, module and required library versions. Test a separate Native profile, then restore mods in batches.
Common problems and next checks
Crash na tej samej mapie / Same-map crash
Compare the same army on another map and another army on this map. Check asset completeness and author instructions; preserve saves and configuration backups.
Crash przy zapisie / Save crash
Back up the save. Compare modules against the campaign’s original set; avoid removing dependencies from a live campaign as a test.
These symptoms are hypotheses until confirmed by logs and a repeatable test. Preserve saves and change one variable at a time.
15 community mods and tools
A selection of popular community mods, libraries and tools; not a current ranking or a tested compatibility pack. Some entries are historical/Classic and require a suitable game version. Follow the author’s current requirements, dependencies and DLC list. Do not install the whole list together.
- Harmony
- UIExtenderEx
- ButterLib
- Mod Configuration Menu v5
- Diplomacy
- Improved Garrisons
- Dismemberment (Plus)
- Realistic Battle Mod
- Better Time
- The Old Realms - Core
- The Old Realms - Armory
- The Old Realms - Environment
- Shokuho
- Swadian Armoury
- Open Source Armory
Selection checked: 08.10.2026. Source directory.
Report a problemEvidence and limitations — ONE 0.8
ONE 0.8 uses diagnostic rules 1.4. Log evidence is matched to the game executable and session time. Mod configuration warnings are not proof of a crash or of a specific mod being responsible. Unknown outcomes require player confirmation. Real-game validation is still in progress.