# OpenTS: reconstructing the Tiberian Sun engine

> OpenTS reconstructs the Command & Conquer: Tiberian Sun 2.03 Firestorm engine as a standalone program. It combines GPL-released source from related Command & Conquer games with reverse engineering of the original executable, and uses assets from the user's installed game.

- 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/OpenTS-Developers/OpenTS>
- Primary source: <https://github.com/OpenTS-Developers/OpenTS/blob/ba3c6c560e7dccb7eb2147431f542c43fe4e2352/README.md>
- Catalog page: <https://awesomerea.org/resources/opents-case/>
- Record JSON: <https://awesomerea.org/resources/opents-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/opents-case/index.md)

## Requirements & limits

- **Prerequisites:** An installed Tiberian Sun copy from Steam or the EA App supplies the original assets.
- **Prerequisites:** Windows 10 version 1903 or newer and an SSE4.2-capable processor are required.
- **Limits:** The 32-bit and 64-bit builds use incompatible save and network packet widths.
- **License:** GPL-3.0-or-later license; source derived from Electronic Arts material carries additional GPL Section 7 terms.

## Primary sources

1. <https://github.com/OpenTS-Developers/OpenTS/blob/ba3c6c560e7dccb7eb2147431f542c43fe4e2352/README.md>
2. <https://github.com/OpenTS-Developers/OpenTS/blob/ba3c6c560e7dccb7eb2147431f542c43fe4e2352/LICENSE.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.