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CS2 Item Trading with Blockchain Security & Speed

A client approached SapientPro to build a crypto-enabled marketplace for Steam users. Their goal was to allow players to buy and sell in-game items for USDT, offering an alternative to Steam’s restricted system where real-money withdrawals aren’t supported. The platform needed smart contract integration, access to Steam inventories, and a mobile-friendly design that works for both casual and high-volume users.

Challenges

  • Inventory Access Without a Standard API

    Steam doesn’t provide a public API for inventory access, which made it difficult to pull item data from user accounts in real time.

  • Custom Checkout Logic

    There was no existing framework for the type of transaction system required. The platform needed a crypto-based checkout flow built from scratch, with smart contracts handling the purchasing logic.

Core Functionality

Crypto-Powered Skin Marketplace

The platform enables players to trade Counter-Strike 2 skins for cryptocurrency, giving users more flexibility than the default Steam marketplace.

Item Detail Pages

Each item includes a dedicated page showing key characteristics, visuals, and descriptions so players can make informed decisions before buying.

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Features details

  • Mobile-Ready UI

    We designed a clean, responsive interface that works across screen sizes. Players can browse, filter, and purchase skins easily, even on mobile.

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  • Minimal Checkout Flow

    The checkout process presents only the most essential information, helping users complete purchases quickly and without confusion.

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  • Steam Bot Integration

    Steam bots handle user inventory interactions and item transfers, allowing transactions to occur without delays or manual involvement.

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Development
Solutions

01

Inventory Fetching System

We developed a method to retrieve item data directly from user inventories, using custom logic and Steam bots to manage reliable communication.

02

Smart Contract Implementation

Our engineers wrote and deployed smart contracts to support secure crypto transactions, allowing users to buy and sell items using USDT.

03

Custom Interface and User Flow

The project included complete UI/UX design, covering the home page, checkout flow, and item detail screens, with a focus on clarity, speed, and accessibility across devices.

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Max Tatarchenko

CTO with 14 years of experience in solution architecture and engineering, specializing in blockchain and smart contracts. His broad expertise drives innovation across diverse technology projects.

CTO with 14 years of experience in solution architecture and engineering, specializing in blockchain and smart contracts. His broad expertise drives innovation across diverse technology projects.

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