Voxie Tactics is a Free to Play game, but the game allows players to bring their own Voxies character that they own from the Voxies NFT project across into the game, for additional benefits to the gameplay, as well as customize the playable experience tailored to the Voxie characters that the player owns. You can read more about the different mechanisms related to owning Voxies characters in other parts of this whitepaper.