Case study

OpenGD: a Geometry Dash gameplay reimplementation

OpenGD reimplements Geometry Dash gameplay in C++ on Axmol, aiming to match the original game. It requires resources from Geometry Dash 2.1 or 2.2; the documented gameplay rewrite currently leaves levels unplayable.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 251
Last commit: 2025-07-31
Language: C++
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a download method observed; no demo found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: Requires Geometry Dash 2.1 or 2.2 resources to run.
Prerequisites: Building requires PowerShell, CMake, a C++20 compiler and Axmol.
Limits: The project is unmaintained, and levels are currently unplayable.
License: Licensed under GPL-3.0.

Cite

BibTeX

@misc{opengd-case,
  title = {{OpenGD: a Geometry Dash gameplay reimplementation}},
  howpublished = {\url{https://github.com/Open-GD/OpenGD}},
  url = {https://github.com/Open-GD/OpenGD},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/opengd-case/}}
}

Plain text

OpenGD: a Geometry Dash gameplay reimplementation. https://github.com/Open-GD/OpenGD (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/opengd-case/

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Primary sources

README.md GitHub · Open-GD/OpenGD · Revision 2a0e307