Treasure Trove unlocks when you complete skirmish 8 and Castle Level 17.
There are only 9 levels to upgrade.
| Level | Crystal Pickaxe | Requirements | Might Bonus | Food Cost | Stone Cost | Wood Cost | Ore Cost | Original Time |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | Castle 17 | 0 | |||||
| 2 | 5 | Castle 18 | 375,000 | 375,000 | 375,000 | 375,000 | 5:25:00 | |
| 3 | 25 | Castle 19 | 7,875 | 562,500 | 562,500 | 562,500 | 562,500 | 10:50:00 |
| 4 | 55 | Castle 20 | 11,812 | 843,750 | 843,750 | 843,750 | 843,750 | 21:40:00 |
| 5 | 75 | Castle 21 | 17,719 | 1,262,625 | 1,262,625 | 1,262,625 | 1,262,625 | 1d 19:20:00 |
| 6 | 145 | Castle 22 | 26,578 | 1,898,437 | 1,898,437 | 1,898,437 | 1,898,437 | 3d 14:40:00 |
| 7 | 295 | Castle 23 | 39,867 | 2,847,656 | 2,847,656 | 2,847,656 | 2,847,656 | 7d 05:20:00 |
| 8 | 900 | Castle 24 | 59,801 | 4,271,484 | 4,271,484 | 4,271,484 | 4,271,484 | 14d 10:40:00 |
| 9 | 3500 | Castle 25, Gold Hammer | 89,701 | 6,407,226 | 6,407,226 | 6,407,226 | 6,407,226 | 26d 00:00:00 |
| Total | 5000 |
Crystal Pickaxe Cost: 
Edit
Purchases 1's = 20 gems each
Purchase 10's = 160 gems (16 gems each)
Purchase 100's = 1500 gems (15 gems each)
Purchase 1000's = 14000 gems (14 gems each)
30-DAY INVESTMENT TABLE Edit
| Level | Max Deposit | 'Interest Rate'(85% Base) | 'Max Payout '(Deposit+Interest) | Max Profit |
|---|---|---|---|---|
| 1 | 10,250 | 0% | 18,962 | 8,712 |
| 2 | 10,500 | 1% | 19,530 | 9,030 |
| 3 | 11,000 | 2% | 20,570 | 9,570 |
| 4 | 12,000 | 3% | 22,560 | 10,560 |
| 5 | 13,000 | 4% | 24,570 | 11,570 |
| 6 | 14,000 | 5% | 26,600 | 12,600 |
| 7 | 15,000 | 7% | 28,800 | 13,800 |
| 8 | 16,000 | 12% | 31,520 | 15,520 |
| 9 | 20,000 | 20% | 41,000 | 21,000 |
With Max Deposit research you add 10,000 to the max deposit above and put it into the following equation:
Max Deposit*(Interest Rate+85)=Max Payout
| Buildings |
|---|
| Core Buildings
Castle - Castle Wall - Infirmary - Barracks - Vault - Watchtower Resource Buildings Lumber Mill - Quarry - Mines - Farm - Manor Standard Buildings Academy - Embassy - Trading Post - Workshop Advanced Buildings Prison - Battle Hall - Altar - Treasure Trove Familiar Buildings Monsterhold - Mystic Spire - Spring - Gym |
