Ferhat Balaban Ferhat BalabanMobile, Web & AI Engineer
Service

Web3: Smart Contracts, Tokens/NFTs and dApps

Contracts, mint pages, wallet connection and in-game assets.

A path that starts with a token or NFT contract and extends to a mint page, marketplace and game integration. The contract is tested, verified on testnet, then moved to mainnet.

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Starter

Token or NFT Contract

ERC-20 or ERC-721/1155 contract with tests, testnet deploy, verification

$400
5 days · 1 revision(s)
Standard

Mint Page / dApp

+ mint page with wallet connect, metadata/IPFS, mainnet support

$1200
14 days · 2 revision(s)
Advanced

Custom Web3 Product

+ staking/marketplace/game items, indexer, Unity or web integration

$3000
30 days · 3 revision(s)

Contract types

  • ERC-20 token (transfer, burn, ownership, fee rules)
  • ERC-721 single-edition NFT collection
  • ERC-1155 multi-token (game items, tickets)
  • Staking, marketplace or vesting contracts

Process

  1. Requirements and chain selection (Ethereum, Polygon, Base, etc.) are settled.
  2. The contract is written and covered by automated tests.
  3. It is deployed to testnet; mint and transfer flows are exercised.
  4. An independent audit is recommended; findings are closed.
  5. It goes to mainnet and the source code is verified.

Mint page and dApp

Wallet connection, network check, contract call, metadata and IPFS upload are built together. The page is designed to work on slow networks and shows transaction status clearly.

Security

  • Tests against reentrancy, permission and integer issues
  • Admin rights that can be moved to a multisig
  • Contract source verified on the block explorer
  • Written documentation for key management and deployment steps

Game integration

On the Unity side: wallet connection, inventory reads and item minting. Chain operations run in the background so they do not break the player experience.

Handover

Contract source, deployment addresses, tests, network configuration and admin keys are handed over in writing.

Frequently asked questions

Which chain should we choose?

The decision depends on transaction cost, audience and wallet support. Polygon and Base are low-cost; Ethereum mainnet offers higher security and liquidity. A multi-chain setup is possible if needed.

Is an audit included?

An independent audit is a separate service with its own price. We run automated tests and internal review on our side and recommend a reputable firm for the audit.

How long does a mint page take?

About two weeks for the Standard scope. Visual design, wallet connection, metadata and testnet verification are included.

How does in-game item integration work?

Wallet connection and contract calls are built on the Unity side; inventory and minting flows are designed around the game economy. Chain operations run in the background so players are not kept waiting.

Who holds the admin keys?

Keys are handed to you after deployment. Moving them to a multisig wallet is recommended, and the steps are documented.

Related work

GhoVerse / Web3 Academy — Unity-based MMORPG-style multiplayer game demo on Polygon, with its own token and NFT collections and a Web3 education DAO.

Not sure which package fits?

Describe the work in a few lines. You will get a written scope, a fixed price and a timeline before anything starts.

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