# OpenCross: reconstructing the Chrono Cross engine

> OpenCross rebuilds a native C++20 engine for Chrono Cross that reads an owner's Radical Dreamers Edition installation. It implements game rules and file-format importers, with documented comparisons against the original game and Ghidra scripts for examining the PC executable and PlayStation code.

- 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/sp-hy/OpenCross>
- Primary source: <https://github.com/sp-hy/OpenCross/blob/77306c9a501e6c3a6f55a6fde29c4f5f7b3586fd/docs/README.md>
- Catalog page: <https://awesomerea.org/resources/opencross-case/>
- Record JSON: <https://awesomerea.org/resources/opencross-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/opencross-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires an installed Steam copy of Chrono Cross: The Radical Dreamers Edition.
- **Prerequisites:** Runs on Windows 10 or 11 x64, or Linux and Steam Deck through Proton, with Vulkan or Direct3D 12 support.
- **Limits:** The engine is in development and some features are still being polished.
- **License:** GPL-3.0-or-later.

## Primary sources

1. <https://github.com/sp-hy/OpenCross/blob/77306c9a501e6c3a6f55a6fde29c4f5f7b3586fd/docs/README.md>
2. <https://github.com/sp-hy/OpenCross/blob/77306c9a501e6c3a6f55a6fde29c4f5f7b3586fd/README.md>
3. <https://github.com/sp-hy/OpenCross/blob/77306c9a501e6c3a6f55a6fde29c4f5f7b3586fd/tools/ghidra/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.