Land

Defense tower upgrade path

Build the first tower, then upgrade it through the stages below. For each upgrade, choose one payment option; the two columns are alternatives.

Tower appearance	Gold payment option	Diamond payment option
Tower appearanceBuild tower · 1Tower	Gold payment option Gold × 8,000 Wood × 300 Iron × 100 Stone × 200	Diamond payment option—
Tower appearanceUpgrade · 2Fire Tower	Gold payment option Gold × 10,000 Wood × 300 Iron × 100 Stone × 200 Green Crystal × 2	Diamond payment option Diamonds × 100 Wood × 300 Iron × 100 Stone × 200 Green Crystal × 2
Tower appearanceUpgrade · 3Stone Tower	Gold payment option Gold × 10,000 Wood × 100 Iron × 200 Stone × 500 Orange Crystal × 3	Diamond payment option Diamonds × 100 Wood × 100 Iron × 200 Stone × 500 Orange Crystal × 3
Tower appearanceUpgrade · 4Advanced Stone Tower	Gold payment option Gold × 30,000 Wood × 150 Iron × 300 Stone × 600 Green Crystal × 6	Diamond payment option Diamonds × 300 Wood × 150 Iron × 300 Stone × 600 Green Crystal × 6
Tower appearanceUpgrade · 5Spitfire Tower	Gold payment option Gold × 60,000 Wood × 300 Iron × 800 Stone × 300 Blue Crystal × 6	Diamond payment option Diamonds × 600 Wood × 300 Iron × 800 Stone × 300 Blue Crystal × 6
Tower appearanceUpgrade · 6Lightning Tower	Gold payment option Gold × 60,000 Wood × 300 Iron × 800 Stone × 300 Green Crystal × 20	Diamond payment option Diamonds × 600 Wood × 300 Iron × 800 Stone × 300 Green Crystal × 20

Unlock land

Defeat a field’s guard to acquire it. The current level requirements for your six fields are:

1. Level 13
2. Level 17
3. Level 20
4. Level 23
5. Level 27
6. Level 30

Resource mines

Build a mine on an owned field, choose a gathering duration, then return to collect the finished resources. Materials support construction and equipment upgrades.

Resource mine	Construction cost	2 hours	6 hours	12 hours
Resource mineWood Mine	Construction cost Gold × 2,000	2 hoursWood × 4	6 hoursWood × 12	12 hoursWood × 20
Resource mineStone Mine	Construction cost Gold × 2,000	2 hoursStone × 4	6 hoursStone × 12	12 hoursStone × 20
Resource mineIron Mine	Construction cost Gold × 2,000	2 hoursIron × 4	6 hoursIron × 12	12 hoursIron × 20

Published resource bonuses can increase eligible output. See Events.