# gopenfusion: reconstructing FusionFall packet services

> gopenfusion reconstructs part of FusionFall's packet protocol and server services in Go. Its login server and dummy shard support basic joining, movement, chat and limited NPC interactions; a generator derives structures from a decompiled game assembly.

- Type: Case study
- Targets: Game · Protocol
- 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/CPunch/gopenfusion>
- Primary source: <https://github.com/CPunch/gopenfusion/blob/cafca9093cfa82dc041b2a584f70527f1fae1bda/README.md>
- Catalog page: <https://awesomerea.org/resources/gopenfusion-case/>
- Record JSON: <https://awesomerea.org/resources/gopenfusion-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/gopenfusion-case/index.md)

## Requirements & limits

- **Prerequisites:** Go 1.19, according to go.mod; Docker Compose starts the documented Redis and PostgreSQL environment.
- **Prerequisites:** The structure generator takes decompiled output from FusionFall's Assembly - CSharp.dll.
- **Limits:** The shard supports only the minimum packets needed for the landwalker demo, with limited NPC and player interactions.
- **License:** MIT license.

## Primary sources

1. <https://github.com/CPunch/gopenfusion/blob/cafca9093cfa82dc041b2a584f70527f1fae1bda/README.md>
2. <https://github.com/CPunch/gopenfusion/blob/cafca9093cfa82dc041b2a584f70527f1fae1bda/go.mod>

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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.