On The Sandbox, the marketplace is a place where you will be able to purchase tokens such as ASSETs, LANDs and GEMs.
Voxel artists are able to upload their ASSETs to the marketplace, thus "converting" them into non-fungible tokens (NFTs).
The marketplace is the first initial step to tokenising voxel ASSETs. It also introduces artists to the blockchain by presenting them with a non-fiat decentralised marketplace. The marketplace will allow the trading of tokenised ASSETs which are interoperable between different games and different platforms.