Licensing & Attribution
Aurora uses several open-source libraries and engines. This page provides attribution and licensing information for the major third-party components.
Engine
Section titled “Engine”Aurora’s native engine for RPG Maker XP, VX, and VX Ace games is a fork of mkxp-z, which is licensed under the GNU General Public License v2 or later (GPLv2+).
| Component | License | Source |
|---|---|---|
| mkxp-z | GPLv2+ | github.com/mkxp-z/mkxp-z |
| SDL2 | zlib License | libsdl.org |
| Ruby (1.8.7 / 1.9 / 3.1) | Ruby License (older versions dual-licensed with GPLv2; Ruby 3.1 dual-licensed with BSD 2-Clause) | ruby-lang.org |
| MetalANGLE | BSD 3-Clause | github.com/kakashidinho/metalangle |
| nodejs-mobile | MIT | github.com/nodejs-mobile/nodejs-mobile |
| ogv.js | MIT | github.com/bvibber/ogv.js |
| UnrarKit | BSD 2-Clause (bundled unrar library under the UnRAR license — see note below) | github.com/abbeycode/UnrarKit |
| ZIPFoundation | MIT | github.com/weichsel/ZIPFoundation |
| ZipArchive | MIT | github.com/ZipArchive/ZipArchive |
| PLzmaSDK | MIT | github.com/OlehKulykov/PLzmaSDK |
| MijickPopups | Apache 2.0 | github.com/Mijick/Popups |
| PaletteKit | MIT | © 2026 Geonwoo Lee |
| MijickNavigationView | MIT | github.com/Mijick/NavigationView |
| FluidGradient | MIT | github.com/Cindori/FluidGradient |
Ruby Runtimes
Section titled “Ruby Runtimes”Aurora bundles multiple versions of the Ruby interpreter (1.8.7, 1.9, and 3.1) to run RGSS game scripts. Ruby is distributed under the Ruby License (older versions dual-licensed with GPLv2; Ruby 3.1 dual-licensed with BSD 2-Clause).
Web Engine
Section titled “Web Engine”Aurora’s engine for RPG Maker MV and MZ games is built on the system WKWebView, with nodejs-mobile (MIT) emulating the desktop nw.js environment and ogv.js (MIT) providing video playback.
- Aurora’s RAR support uses parts of the UnRAR source code, © Alexander Roshal, distributed under the UnRAR license.
- mkxp-z bundles further dependencies of its own (such as image, audio, and font libraries); see the mkxp-z repository for its full dependency and license list.
- RPG Maker and RGSS are trademarks of their respective owners. Aurora does not include or distribute the RPG Maker Run Time Packages or any game assets — you supply your own games.
For general acknowledgements, see Credits.