# NetspherePirates: an S4 League Patch 34 server emulator

> NetspherePirates recreates a server for the S4 League Patch 34 client, identified as EU v1139 Season 1. Its C# source defines game login outcomes, channel responses and serialized server information.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/wtfblub/NetspherePirates>
- Primary source: <https://github.com/wtfblub/NetspherePirates/blob/c0d2eacfe5c543e08ba5c6274f2538616d64680e/README.md>
- Catalog page: <https://awesomerea.org/resources/netspherepirates-s4-league-case/>
- Record JSON: <https://awesomerea.org/resources/netspherepirates-s4-league-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/netspherepirates-s4-league-case/index.md)

## Requirements & limits

- **Prerequisites:** .NET Core 2.1, MariaDB or MySQL, and Redis.
- **Prerequisites:** On Windows, .NET Framework 4.7.2.
- **Prerequisites:** S4 League Patch 34 (EU v1139) client.
- **Limits:** The emulator is described as experimental.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/wtfblub/NetspherePirates/blob/c0d2eacfe5c543e08ba5c6274f2538616d64680e/README.md>
2. <https://github.com/wtfblub/NetspherePirates/blob/c0d2eacfe5c543e08ba5c6274f2538616d64680e/src/Netsphere.Network/Constants.cs>
3. <https://github.com/wtfblub/NetspherePirates/blob/c0d2eacfe5c543e08ba5c6274f2538616d64680e/src/Netsphere.Network/Data/Auth/ServerInfoDto.cs>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.