Tower

The Tower is a "premium structure" due to it is only obtainable by purchasing it with Kreds.

Any purchased premium Structure like Tower or Sword are stuck to your Account, so even if you clear all your progress with the "clear progress" function, you will still have your Tower-Level.

If you want to support the dev, then buy premium structures or functions (like Heavenly Light).

Bonus by Tower Levels:

Level 1 (10 Kreds): Level 2 (50 Kreds): Level 3 (200 Kreds): Level 4 (500 Kreds): Level 5 (1000 Kreds):
 * +1 to base GPC
 * x2 to base Pan production
 * +10 to base GPC
 * x4 to base Pan production
 * x2 to base Sluice Box production
 * 1 amulet to keep between restarts
 * +100 to base GPC
 * x8 to base Pan production
 * x4 to base Sluice Box production
 * x2 to base Trolley production
 * 1 amulet to keep between restarts
 * +1 percent to red shards efficiency
 * +1000 to base GPC
 * x16 to base Pan production
 * x8 to base Sluice Box production
 * x4 to base Trolley production
 * x2 to base Mine production
 * 2 amulets to keep between restarts
 * +2 percents to red shards efficiency
 * +10000 to base GPC
 * x32 to base Pan production
 * x16 to base Sluice Box production
 * x8 to base Trolley production
 * x4 to base Mine production
 * x2 to base Cyborg Plant production
 * 3 amulets to keep between restarts
 * +5 percents to red shards efficiency