Reference

Hero Revival Speed Boost
Construction Cost Reduction
Construction Speed Boost

Heroes Altar

You can hire and train Heroes here. Further upgrades reduce Hero revival times.

HP Revive Might Space Upgrade Time Upgrade Cost
Heroes Altar level 1 3500 3% 10% 3×3 10 sec. 240Gold
Heroes Altar level 2 4000 6% 20% 3×3 1 min. 1100Gold
Heroes Altar level 3 5000 9% 30% 3×3 5 min. 3000Gold
Heroes Altar level 4 5500 12% 40% 3×3 15 min. 6000Gold
level 5 6500 15% 50% 3×3 30 min. 13000Gold
Heroes Altar level 6 7500 18% 60% 3×3 60 min. 22000Gold
level 7 9000 21% 70% 3×3 2 hour. 38000Gold
Heroes Altar level 8 10500 24% 80% 3×3 4 hour. 63000Gold
level 9 12000 27% 90% 3×3 8 hour. 110000Gold
Heroes Altar level 10 14000 30% 100% 3×3 12 hour. 150000Gold
level 11 16500 33% 110% 3×3 24 hour. 270000Gold
Heroes Altar level 12 19000 36% 120% 3×3 2 days. 380000Gold
level 13 21500 39% 130% 3×3 3 days. 520000Gold
level 14 25000 42% 140% 3×3 4 days. 690000Gold
Heroes Altar level 15 29000 45% 150% 3×3 5 days. 890000Gold
level 16 33500 48% 160% 3×3 6 days. 1300000Gold
level 17 38500 51% 170% 3×3 7 days. 1800000Gold
Heroes Altar level 18 45500 54% 180% 3×3 8 days. 2400000Gold
level 19 52500 57% 190% 3×3 10 days. 3000000Gold
level 20 63000 60% 200% 3×3 12 days. 3600000Gold
Heroes Altar level 21 80000 62% 210% 3×3 13 days. 4100000Gold
level 22 100000 64% 220% 3×3 14 days. 4700000Gold
level 23 120000 66% 230% 3×3 15 days. 5200000Gold
level 24 140000 68% 240% 3×3 16 days. 5700000Gold
level 25 160000 70% 250% 3×3 17 days. 6200000Gold

Hero Mode: Heroes Altar Storage – Hero Mode: Heroes Altar Storage
Item Mode: Warehouse Storage – Item Mode: Warehouse Storage

Additionally

Hire Heroes