# RappelzCore & RappelzRust: reconstructing a Rappelz NoLimits client and server

> RappelzCore and RappelzRust reconstruct a Rappelz NoLimits server and game client in Rust from analysis of the customized SFrame.exe client. The author documents REA and Ghidra work on client functions, resource formats and packet layouts; both components are described as under development.

- Type: Case study
- Targets: Game · Protocol
- Category: Community REA investigations
- Relationship: Author-reported mixed workflow
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/BlaMacfly/RappelzCore>
- Primary source: <https://github.com/BlaMacfly/RappelzCore/blob/f845eb6e696a0b0e47ebf88c8e1b08cdb90bd952/README.md>
- Catalog page: <https://awesomerea.org/resources/rappelzcore-rappelzrust-case/>
- Record JSON: <https://awesomerea.org/resources/rappelzcore-rappelzrust-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rappelzcore-rappelzrust-case/index.md)

## Requirements & limits

- **Prerequisites:** The Rappelz NoLimits customized x86 client is the analysis target.
- **Limits:** Both Rust components are version 0.1.0 and under development; the exact official game Epic and patch remain unresolved.
- **License:** GPL-2.0 license.

## Primary sources

1. <https://github.com/BlaMacfly/RappelzCore/blob/f845eb6e696a0b0e47ebf88c8e1b08cdb90bd952/README.md>
2. <https://github.com/BlaMacfly/RappelzCore/blob/f845eb6e696a0b0e47ebf88c8e1b08cdb90bd952/docs/CLIENT_REVERSE_ENGINEERING.md>

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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.