# roBrowser: a browser reconstruction of Ragnarok Online

> roBrowser recreates a Ragnarok Online client for web browsers using JavaScript, HTML5 and WebGL. Its code includes game and login engines, resource viewers and loaders; deployment instructions use converted client data, a remote resource client and a WebSocket proxy to connect to a server.

- 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/vthibault/roBrowser>
- Primary source: <https://github.com/vthibault/roBrowser/blob/e4b5b53aa1f8b7e429bfa987ab321c96502ba1da/README.md>
- Catalog page: <https://awesomerea.org/resources/robrowser-case/>
- Record JSON: <https://awesomerea.org/resources/robrowser-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/robrowser-case/index.md)

## Requirements & limits

- **Prerequisites:** A WebGL-capable browser compatible with OpenGL ES 2.0 is required.
- **Prerequisites:** Deployment requires converted game client data, a remote resource client and a WebSocket proxy.
- **Limits:** The remote client supports GRF archive version 0x200 without DES encryption.
- **License:** GPL-3.0 licence.

## Primary sources

1. <https://github.com/vthibault/roBrowser/blob/e4b5b53aa1f8b7e429bfa987ab321c96502ba1da/README.md>
2. <https://github.com/vthibault/roBrowser/blob/e4b5b53aa1f8b7e429bfa987ab321c96502ba1da/client/readme.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.