# Release licensing review — 5 September 2026

Scope: Factorio Calculator 1.0.0, including the symbolic Blueprint generator, the static STRATO website and the portable Windows applications.

## Assessment

For this implementation, the Blueprint generator does not appear to require an additional grant for game artwork beyond the permission already reported by the operator for the free calculator. This is a scoped assessment based on the inspected files and that existing permission, rather than a new permission statement from Wube.

The generator adds original layout and SVG drawing code and reuses the same icon collection as the calculator. It does not include original entity sprite sheets, game animations, models, music, a Factorio installation or the game executable. Its exported blueprint strings contain structured entity identifiers, positions and settings, not copies of icon images. The format is publicly documented by the Factorio Wiki: <https://wiki.factorio.com/Blueprint_string_format>.

Wube retains ownership of Factorio data and imagery. Its published terms reserve those rights; the artwork provisions for mods are not a general website redistribution license. The basis for the existing game material here is the operator's reported direct permission for this free calculator, including possible advertising while use remains free. See <https://factorio.com/terms-of-service>. Full correspondence is not part of the distributed source.

An expansion to original game animation/sprite rendering, a paid service or redistribution for unrelated products would need a fresh assessment of the applicable permission. This release contains no ads or tracking integration and remains free to use. The project identifies itself as unofficial and does not imply Wube endorsement.

## Distribution

Original calculator and generator source is GPL-3.0-only. The complete corresponding source, including both Windows launchers and build scripts, accompanies the Windows ZIP and is downloadable from the static website. The GPL does not transfer ownership of Wube material. License text and source-distribution terms: <https://www.gnu.org/licenses/gpl-3.0.html>.

The icon mirror declares GPL licensing for its project and identifies the extracted images as Wube property: <https://github.com/deniszholob/icons-factorio>. Its license and the runtime client libraries' copyright and license notices are preserved. The Windows ZIP also contains the unmodified Node.js license and bundled notices. No installed dependency directory is redistributed as source.

Public operator details are inserted into the hosting and portable website's legal and privacy pages from a local configuration. That configuration and private correspondence are excluded from the source repository/archive; the source contains an editable operator configuration example. The published application source and generator implementation are otherwise the same across web and Windows.
