Case study

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.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C1 partial scope or analysis entry

Stars: 17
Last commit: 2026-11-10
Language: C++
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Demo available · no screenshot

Observed: Download and demo observed; the case covers part of the target software.
Scope: Partial
Checked: 2026-11-09

How evidence classes are assigned

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.

Cite

BibTeX

@misc{opencross-case,
  title = {{OpenCross: reconstructing the Chrono Cross engine}},
  howpublished = {\url{https://github.com/sp-hy/OpenCross}},
  url = {https://github.com/sp-hy/OpenCross},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/opencross-case/}}
}

Plain text

OpenCross: reconstructing the Chrono Cross engine. https://github.com/sp-hy/OpenCross (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/opencross-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

docs/README.md GitHub · sp-hy/OpenCross · Revision 77306c9
README.md GitHub · sp-hy/OpenCross · Revision 77306c9
tools/ghidra/README.md GitHub · sp-hy/OpenCross · Revision 77306c9