The digital currency project refers to an encrypted game on the internet, where users log in and play the game by breeding electronic animals within the game known as that can be purchased using the in-game currency (axs). The currency can also be traded on existing online trading platforms, and the game operates on the encrypted blockchain of Ethereum, which is a decentralized network where transactions and information exchange occur between parties without the intervention of a third party.

The digital currency (axs) was developed by a Vietnamese developer named Sky Mavis in 2018. The number of players using the game reached nearly one million daily players in 2021, thus making the application of the currency the largest application of the Ethereum blockchain.