How it works
Each floor is a grid of stone tiles, and each tile mined costs a pickaxe and gives a basic reward such as Gear XP, Hero XP, Gems, resources or 5-minute speedups. The aim on each floor is to find the Ultimate Treasure you selected, which you can change at any time; the 14th tile mined on a common floor is always the Ultimate Treasure, so a floor costs at most 14 pickaxes. Every fifth floor is a higher tier with much better rewards, and milestone rewards unlock by floors cleared, from 2 up to 100.
Daily missions
| Mission | Pickaxes |
|---|---|
| Call a rally and hunt down 1 Terror | 5 |
| Make 5 Alliance Contributions | 5 |
| Raise 30,000 power by training or promoting troops | 6 |
| Make any purchase once | 10 |
Tips
- Daily missions give up to 26 pickaxes a day, 130 over the event; pickaxe packs are also sold.
- Pickaxes carry over between events, so if you have fewer than 14 it can be worth saving them to guarantee an Ultimate Treasure next time.
- Aim for floors 5, 10 and so on, which double the Ultimate Treasure reward.
- With plenty of pickaxes, auto-mine clears floors for you and keeps the same Ultimate Treasure on each new floor.