Fields of Mistria · 1.0.2
Mines 1–80 Seals, Puzzles & Offerings Guide
Direct answer
The Mines contain 4 major biome seals across floors 1–80: Water Seal (Floor 20), Earth Seal (Floor 40), Fire Seal (Floor 60), and Ruins Seal (Floor 80). Each requires 4 biome offerings to dispel the seal and unlock dragon magic powers.

All 4 Mine Seals, Floor Ranges & Offerings
Every 20 floors in The Mines features an ancient seal tablet blocking deeper descent. Interacting with the tablet initiates a translation quest with Juniper and Eiland. Offering all 4 requested biome items breaks the seal and bestows permanent Dragon Magic spells.

The Upper Mines
Seal Floor: Floor 20 (Water Seal)
- Floors
- 1–19
- Key Ore
- Copper Ore
- Key Gem
- Ruby
- XP Rate
- +3 XP

The Tide Caverns
Seal Floor: Floor 40 (Earth Seal)
- Floors
- 21–39
- Key Ore
- Iron Ore
- Key Gem
- Sapphire
- XP Rate
- +4 XP

The Deep Earth
Seal Floor: Floor 60 (Fire Seal)
- Floors
- 41–59
- Key Ore
- Silver Ore
- Key Gem
- Emerald
- XP Rate
- +5 XP

The Lava Caves
Seal Floor: Floor 80 (Ruins Seal)
- Floors
- 61–79
- Key Ore
- Gold Ore
- Key Gem
- Diamond
- XP Rate
- +6 XP
Step-by-Step Mine Seal Walkthrough (Floors 1–80)
Floor 20: Water Seal (The Upper Mines)
Required Altar Offerings: Ruby (Floors 1–19 ore nodes), Stone Loach (Floors 1–19 water pools), Lantern Moth (Floors 1–19 bugs), Upper Mines Mushroom (Floors 1–19 foraging).
Reward & Unlock: Unlocks Dragon Magic: Summon Rain (waters crops on farm) and opens The Tide Caverns (Floors 21–40).
Floor 40: Earth Seal (The Tide Caverns)
Required Altar Offerings: Sapphire (Floors 21–39 nodes), Coral Mantis (Floors 21–39 bugs), Archerfish (Floors 21–39 water pools), Cave Kelp (Floors 21–39 seaweed foraging).
Reward & Unlock: Unlocks Dragon Magic: Growth (instantly matures crops in 3x3 tiles) and opens Deep Earth (Floors 41–60).
Floor 60: Fire Seal (Deep Earth)
Required Altar Offerings: Emerald (Floors 41–59 nodes), Rockroot (Floors 41–59 foraging), Faceted Rock Gem (Artifact found in dirt digging), and Balor’s Sealing Scroll (costs 10 Rubies, 10 Sapphires, 10 Emeralds, 10 Silver Ingots).
Reward & Unlock: Unlocks Dragon Magic: Dragon’s Breath (stream of flame destroys rocks & monsters) and opens The Lava Caves (Floors 61–80).
Floor 80: Ruins Seal (The Lava Caves)
Required Altar Offerings: Diamond (Floors 61–79 nodes), Flame Pepper (Floors 61–79 foraging), Firesail Fish (Floors 61–79 lava fishing), and Lantern / Lava offering completed after the Void Mass trial.
Reward & Unlock: Unlocks Dragon Magic: Sacred Light (illuminates pitch black chambers) and unlocks The Ancient Ruins (Floors 81–100).