Unity Game Web3 Integration Needed

I’m expanding an existing Unity game onto Ethereum and need someone who has already shipped Web3 features inside a live title. The immediate goals are threefold:

1. let players connect their crypto wallet and sign in from within the Unity client (MetaMask, WalletConnect or a comparable flow),
2. mint and manage NFTs that represent characters, skins, weapons and other upgradable items, and
3. distribute an in-game ERC-20 style reward token that can be earned through play.

Everything must run on Ethereum mainnet first, though I’m open to later side-chain or L2 optimisations once the core loop is solid. Trading of the minted NFTs between players will happen in-game, so a secure marketplace layer inside the client is part of the brief.

I will supply current game source, art assets and basic tokenomics documentation; you bring proven Unity (or React if you prefer building an external marketplace dashboard) plus solid Web3 experience—signing, gas estimation, contract deployment and basic security auditing. Please share links to past Unity or Web3 projects that demonstrate those specific skills along with a short outline of how you would structure the wallet login, NFT contract (ERC-721 or ERC-1155) and reward token flow.

Deliverables
• Ethereum-ready smart contracts with comments
• Unity integration scripts/plugins for wallet, NFT minting & token rewards
• Simple in-game NFT marketplace prototype
• Build instructions and a recorded walkthrough confirming everything works end-to-end

Acceptance is based on compiling the game, connecting a wallet, minting an item, earning the reward token and successfully listing/selling the NFT—all on an Ethereum testnet.