# My Simulation: reimplementing The Sims Online client

> My Simulation is an experimental reimplementation of The Sims Online as a multiplayer game. Its client is written in Zig with Raylib, uses NioTSO libraries to read the game's proprietary formats, and connects to a FreeSO-based API server.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/simtactics/mysimulation>
- Primary source: <https://github.com/simtactics/mysimulation/blob/e9d7d736ebf5bdf013c57dba59531b9c411581a1/README.md>
- Catalog page: <https://awesomerea.org/resources/my-simulation-case/>
- Record JSON: <https://awesomerea.org/resources/my-simulation-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/my-simulation-case/index.md)

## Requirements & limits

- **Prerequisites:** The Sims Online game files are required.
- **Prerequisites:** The client requires Zig 0.11 or newer; the API server requires .NET 8.0 or newer.
- **Limits:** The project describes itself as experimental.
- **License:** GPL-3.0 license.

## Primary sources

1. <https://github.com/simtactics/mysimulation/blob/e9d7d736ebf5bdf013c57dba59531b9c411581a1/README.md>
2. <https://github.com/simtactics/mysimulation/blob/e9d7d736ebf5bdf013c57dba59531b9c411581a1/docs/README.md>

## More in Games

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- [NEOTOKYO Rebuild: rebuilding the NEOTOKYO multiplayer game](https://awesomerea.org/resources/neotokyo-rebuild/index.md) · Case study
- [NeoTS2: rebuilding The Sims 2 engine](https://awesomerea.org/resources/neots2-case/index.md) · Case study
- [nfs-mw: a Rust reconstruction of Need for Speed: Most Wanted](https://awesomerea.org/resources/nfs-mw-case/index.md) · Case study
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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.