# 9. Marketplace Implementation

1. 1. Built on Immutable X
   2. * The marketplace leverages Immutable X for its gas-free, high-speed transaction capabilities, enabling players to buy, sell, and trade NFTs without incurring high fees.
      * Immutable X’s zk-rollup technology aggregates multiple transactions into a single Ethereum Layer 1 transaction, maintaining security while significantly improving scalability.
   3. Smart Contracts
   4. * Custom Ethereum smart contracts manage all marketplace transactions, ensuring transparency, automation, and secure ownership transfers.
      * These contracts handle minting, trading, bidding, and auction mechanisms in a fully decentralized manner.
   5. User-Friendly Interface
   6. * The marketplace offers an intuitive interface for players to browse, list, and trade NFTs, ensuring accessibility for both blockchain veterans and newcomers.
   7. Interoperability
   8. * NFTs traded on the *AI Pocalypse* marketplace can also be used on other Immutable X-supported platforms, expanding the utility of in-game assets beyond the game.
