C-Stacks are a fictional cryptocurrency introduced in Payday 3, which can be used to make in-game purchases. They are not a premium currency and cannot be purchased with real-world money. C-Stacks can be used to buy items from vendors that cant be purchased with cash, including high-level goods and cosmetics. They can be purchased from Setaggi, the Currency Vendor on the games main screen between heists, and are sold in packs of one, five, or ten C-Stacks. Each time you purchase a pack, the next pack of the same size gets more expensive. C-Stacks can also be earned by completing Career Challenges or converting the loot earned from heists into C-Stacks.

C-Stacks can be used to purchase powerful preset weapons once youve reached a high enough Infamy level, as well as gloves, suits, masks, and charms. They are mainly used to buy items that cannot be purchased with cash from heists. C-Stacks are not the main currency used in the game, but they are a secondary currency that can be used to buy some extra items, both cosmetic and not. It is recommended to buy a bit of C-Stacks each week to have a decent reserve of C-Stacks that can be used at will.

In summary, C-Stacks are a fictional cryptocurrency introduced in Payday 3 that can be used to make in-game purchases. They are not a premium currency and cannot be purchased with real-world money. C-Stacks can be used to buy items from vendors that cant be purchased with cash, including high-level goods and cosmetics. They can be purchased from Setaggi, the Currency Vendor on the games main screen between heists, and are sold in packs of one, five, or ten C-Stacks. C-Stacks can also be earned by completing Career Challenges or converting the loot earned from heists into C-Stacks.