AbbyCoin

AbbyCoin (often rendered as "Abbycoin" or "abbycoin") is a currency created by and used within Art Heaven. The currency was introduced in 2019 as a funding method for the card distribution process of the simultaneously-released card game, Heaven Grand Order. The currency quickly saw use for other goods in the form of being exchangeable for firearms through the same storefront as the cards.

While the coins were originally minted as a reward for supporting Abby's Patreon account, the vast majority of coins have been minted on-demand for loans, while others were created and given as reward for various user activities. The prominence of loans as the primary source of citizen income, with one available 24 hours after the last, and an undocumented interest rate (that has been frozen with the advent of the City Stasis), has lead Art Heaven into a national debt crisis and resulted in AbbyCoin's status as a hyperinflated currency worthless outside of government-sanctioned interactions. Other currencies such as Bobuck and the US Dollar have largely supplanted its use between Art Heaven residents.