Crystal

Crystals are Prerium Currency of Cower Defense, costing real money to buy.

Crystals can be used to Speed up Build times or Build Buildings instantly, Buy Energy or Rescources.

Altho Crystals are Prerium Currency, there are few ways of gaining them without using real money. Such as: Achievments. Most achievments have Three stages to complete, each giving more Crystals when Completed. amount of gained Ranges from: Stage 1 = 5 Crystals, Stage 2 = 25 Crystals, Stage 3 = 100 Crystals. 25 Crystals can aslo be earned from tournaments if you are below 3nd place.

Prices
100 Crystals = 0.99€

300 Crystals = 2,99€

1,200 Crystals = 9,99€

2,500 Crystals = 19,00€

6,500 Crystals = 49,99€