Unofficial fan reference · game data patch 9.0.4 (Oct 15, 2026)

Bretonnia technologies

56 technologies from the game's research tree for Bretonnia, patch 9.0.4, line by line as the game lays them out. Hover or tap a technology for its cost (research points, plus gold or a campaign resource for 1 of them), its effects and what it needs first. Faction-only trees (a single lord's variant) are not included.

COMPUTEDThe whole tree costs 31,200 research points. Each technology's tooltip also shows what reaching it costs: its own points plus the technologies it needs first, each counted once (the tree's links). Research points only: the gold and campaign resources some technologies also cost are listed on each, not added up. Before research speed bonuses; some technologies also need a building, which this doesn't count. Subsidised Tools, Charity, Temple Tithes, Improved Trade Vessels, Harbourmaster Bribes and Improved Construction also list a gold amount per turn in the tables (technology_nodes.cost_per_round); whether the game still charges it isn't confirmed, so it isn't shown or counted.

  1. The Chivalric Code
  2. Economic Investment
  3. Subsidised Tools
  4. Charity
  5. Encourage Fanaticism
  6. Temple Tithes
  1. Heraldry of Aquitaine
  2. Heraldry of Lyonesse
  3. Overseas Diplomacy
  4. Kings of the Mountains Diplomacy
  5. Almshouses
  6. Town Census
  7. Commission Carpenters
  8. Longer Spears
  1. Heraldry of Parravon
  2. Heraldry of Bastonne
  3. Support Religious Errantry
  4. Leaders of Men Diplomacy
  5. Improved Trade Vessels
  6. Harbourmaster Bribes
  7. Registered Draft
  8. Professional Fletchers
  1. Lords of Athel Loren Diplomacy
  2. Kings of the Desert Diplomacy
  3. Siege Engineering
  1. The Unification of Bretonnia
  2. Improved Agricultural Tools
  3. Wider Ploughs
  4. Hay Stores
  1. Decrees of Bretonnia
  2. Improved Construction
  3. Irrigation Ditches
  4. Water Pumps
  5. Farriers
  6. Blinker Hoods
  1. Green Tide Decree
  2. Winter Woes Decree
  3. Death's Grip Decree
  4. Ruinous Powers Decree
  5. Safer Woods Decree
  6. Improved Smelters
  7. Steel Furnaces
  1. Grey Mountain Watch
  2. The North Guard
  3. Forests' Edge Decree
  4. Secure Shores Decree
  5. Sewer Cleaning Decree
  6. Bigger Bobbins
  7. Improved Loom Technology
  8. Glazing Kilns
  9. Master Swordsmiths
  1. Desert Purge Decree
  2. High Seas' Decree
  3. Weaving Apprenticeships
  4. Seamstresses
  5. Regular Tournaments