Cost & Rewards

The Electrum Mine is going to be a significant source of Electrum and XP, there will also be 2 new rewards available. The deeper into the Mine you go, the better the rewards.

Cost is determined with the formula (tier * 10 * boss depth). • Base cost (first boss) of a Bronze mine run is (1*10*1) = 10, Silver is (2*10*1) = 20, etc... • Cost to fight 7th boss in Bronze is (1*10*7) = 70, Silver is (2*10*7) = 140, etc...

The reward numbers in this chart represent how much Electrum and XP you will receive for defeating the corresponding boss, any bonuses will be calculated on top of these numbers.

Reward is determined with the formula (cost * (2 + 0.5 * (boss depth-1))) • Reward for 1st boss in Bronze would be (10 * (2 + 0.5 * (1-1))) = 20 • Reward for 7th boss in Bronze would be (70 * (2 + 0.5 * (7-1))) = 350

As of the January 10th, 2024 update, all Electrum and XP rewards received in Mine Runs is doubled (not reflected in data/formulas above).

Relic Fragments is a new reward available, and will be used to create Relics for the new Hero slot that is coming in the updated Hero system.

Evolution Essence is the second new reward available, it will be used to raise heroes evolution ranks in the updated Hero system.

New rewards are not guaranteed, they have a percentage change to be won using the formula (tier * boss depth)% chance, calculated separately for each of the new items (ie. you could get one, both, or none). • Chance on 4th boss in Bronze would be (1*4) = 4% chance for each. • Chance on 4th boss in Gold would be (3*4) = 12% chance for each.

Reward odds were updated in January 10th, 2024 update. Odds of finding Evolution Essence is doubled (x2) compared to above chart. Odds of finding Relic Fragment is tripled (x3) compared to above chart.