Xsolla SDK for Windows

Pre-built native SDKs for integrating in-game payments into your Windows app via Xsolla Pay Station.

SDK Explorer

See exactly how payments work before writing a single line of code. The SDK Explorer lets you walk through authentication, catalog loading, purchasing, and finalization — all in an interactive environment.

Integrate Now →

Essential Links

• SDK Explorer — interactive demo
• SDK Documentation — full integration guide

Overview

Xsolla SDK for Windows provides native C# and C++ libraries for in-game purchases via Xsolla Pay Station. Both SDKs share the same backend infrastructure and offer equivalent functionality.

Key features:

• 1000+ payment methods across 200+ geographies
• 130+ currencies including local and alternative payment methods
• Built-in anti-fraud protection
• 25+ languages supported out of the box
• Player authentication (Xsolla Login widget, social login, custom tokens)
• Product catalog and virtual items

SDKs

SDK	Platforms	Distribution
C# SDK	.NET 6, 7, 8, 9 + .NET Standard 2.1	com.xsolla.sdk-csharp-{version}.zip
C++ SDK	Windows x64 (MSVC)	com.xsolla.sdk-cpp-{version}.zip (coming soon)

Download the latest release ZIP from GitHub Releases.

C# SDK

Requirements

• .NET 6.0 or later (or .NET Standard 2.1 compatible runtime)

Installation

1. Download com.xsolla.sdk-csharp-{version}.zip from Releases
2. Extract the ZIP — DLLs are organized by framework under lib/
3. Reference the XsollaCSharpSDK.dll matching your target framework

Quick Start

1. Configure and create the store client

using Xsolla.SDK.Common;
using Xsolla.SDK.Store;

var settings = XsollaClientSettings.Builder.Create()
    .SetProjectId(YOUR_PROJECT_ID)
    .SetLoginId("YOUR_LOGIN_ID")
    .Build();

var configuration = XsollaClientConfiguration.Builder.Create()
    .SetSettings(settings)
    .SetSandbox(true)
    .Build();

var storeClient = XsollaStoreClient.Builder.Create()
    .SetConfiguration(configuration)
    .AddProducts(new[] { "booster_max_1", "key_1", "premium_3" })
    .SetOnRestore(OnPurchase)
    .Build();

2. Initialize and fetch products

storeClient.Initialize((products, error) =>
{
    if (error != null)
    {
        Console.WriteLine($"Init failed: {error.message}");
        return;
    }

    foreach (var product in products)
        Console.WriteLine($"{product.sku}: {product.formattedPrice}");
});

3. Purchase a product

storeClient.PurchaseProduct("key_1", (purchasedProduct, error) =>
{
    if (error != null)
    {
        Console.WriteLine($"Purchase failed: {error.message}");
        return;
    }

    // Validate the purchase
    storeClient.ValidatePurchase(purchasedProduct.ToReceipt(), (success, err) =>
    {
        if (success)
        {
            // Award the item, then consume
            storeClient.ConsumeProduct(
                purchasedProduct.sku,
                purchasedProduct.quantity,
                purchasedProduct.transactionId,
                consumeError => { /* handle */ });
        }
    });
});

C++ SDK

Coming soon.

License

Apache License 2.0 — Copyright 2026 Xsolla Inc.

Support

• GitHub Issues: github.com/xsolla/xsolla-sdk-windows/issues
• Developer portal: developers.xsolla.com

License

Apache 2.0 License. See LICENSE.