# OpenOrion2: a partial Master of Orion II remake and save viewer

> OpenOrion2 is a partial C++ remake of Master of Orion II: Battle at Antares that reads the original game's LBX resources and saved games. Its current interface can load existing saves as a viewer; starting a new game and gameplay remain unimplemented.

- 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/nextghost/openorion2>
- Primary source: <https://github.com/nextghost/openorion2/blob/dd428f1b7c66bf758d56f8276ec644538bc73641/README.md>
- Catalog page: <https://awesomerea.org/resources/openorion2-case/>
- Record JSON: <https://awesomerea.org/resources/openorion2-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/openorion2-case/index.md)

## Requirements & limits

- **Prerequisites:** Original Master of Orion II LBX game files and existing saves.
- **Prerequisites:** LibSDL2 and SDL2_mixer.
- **Limits:** Gameplay and starting a new game are not implemented.
- **License:** GPL-2.0 License.

## Primary sources

1. <https://github.com/nextghost/openorion2/blob/dd428f1b7c66bf758d56f8276ec644538bc73641/README.md>

## More in Games

- [OpenPlatinum: rebuilding Pokémon Platinum in a native engine](https://awesomerea.org/resources/openplatinum-case/index.md) · Case study
- [OpenPol: an early Polanie reimplementation](https://awesomerea.org/resources/openpol-polanie-case/index.md) · Case study
- [OpenPrivateer: reconstructing Wing Commander: Privateer](https://awesomerea.org/resources/openprivateer-case/index.md) · Case study
- [openQ4: replacing the Quake 4 engine and game binaries](https://awesomerea.org/resources/openq4-quake-4-case/index.md) · Case study
- [OpenRA: an engine reimplementation reimagining early Westwood RTS games](https://awesomerea.org/resources/openra-engine-case/index.md) · Case study
- [OpenRaider: a rewritten engine for Tomb Raider 1–3](https://awesomerea.org/resources/openraider-rewrite-case/index.md) · Case study

## 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.