MARXIS 1.2.1 — a Tetris clone
Markus Väliviita / Väliviita Creations, 2026

Original game concept: Tetris, created by Alexey Pajitnov in 1984.
This is an independent tribute, not a product of or endorsed by the Tetris
rights holders. Tetris is a trademark of its respective owners.
Reference: https://tetris.com/about

Game model adapted from Väliviita DESK (Markus Väliviita, MIT license).
Original logo and wordmark: Väliviita Creations. No third-party logo used.

Music: Korobeiniki, Russian traditional melody (composer unknown).
Poem: Nikolai Nekrasov, 1861. Nekrasov is not credited as melody composer.
Sheet music reference: MuseScore.com. The reference image is not distributed.
The original 24-bar setting is retained. An additional piano variation is
transcribed from four score images supplied by the user ("Tetris / Theme for
advanced piano"); no arranger name or license appears in those images.
This image transcription is not claimed to be a note-perfect critical edition.
The referenced score images are not included. Rights in any third-party
arrangement are not claimed or relicensed by this application's MIT code license.
Synthesizer implementation and new autumn-techno accompaniment:
Väliviita Creations. Four-voice mode includes the full harmony and, in the
autumn variation, wind/rain textures and percussion. No existing recording is used.
These settings are not claimed to be a definitive original folk arrangement.

Desktop runtime: Electron 44.5.1 (MIT), Chromium and Node.js.
Runtime LICENSE and LICENSES.chromium.html are included in desktop packages.
Android uses the device's system WebView. INTERNET permission is used only for
the fixed HTTPS version manifest at konemies.fi/marxis/release.json. No sensor
permissions, device identifiers or game progress are sent. Updates are suggested,
never installed automatically. The user opens the download page in their browser.

The tribute and attribution do not represent trademark clearance or approval
for commercial store distribution. Installer is not Authenticode-signed.