What resets and what is permanent each season?

This is THE idea that drives all your priorities. The game runs in 8-week Reigns.

🔴 Resets every reign (you re-grind it each season):

• The reign level of your dragons
• All Stronghold buildings and research
• The territory you conquered and influence
• Your resources: Wood, Stone, Iron, Food, Meat
• Your House Level

🟢 Permanent (stays forever):

• Your dragons and your eggs
• The star rank and the Habits of your dragons
• Gold, relics, keys
• The Heirlooms you've unlocked and their mastery bonuses

Golden rule: every bit of Gold / relic / star / Heirloom you invest is permanent. At the start of a season, re-grind your House Level fast to switch back on the Heirloom bonuses you've already paid for.