The game lets you buy in-game currency for a price, but as you might expect from a game that isn't free, this is more optional than requirement, and players can obtain upgrades for free if they stay patient.
Egwuregwu ahụ na-ahapụ gị ịzụta ego na-ere maka ọnụahịa, ma dị ka ị nwere ike ịtụ anya site na egwuregwu nke enweghị onwe, nke a bụ nhọrọ karịa ihe achọrọ, ndị egwuregwu nwere ike nweta nkwalite n'efu ma ọ bụrụ na ha na-enwe ndidi.