List of Tetris variants - Wikipedia

Techmino - TetrisWiki

Tetris (NES) - Video Game Music Preservation Foundation Wiki

File:Tetris I.svg - Wikimedia Commons

Tetris, Nintendo

Welltris, Ultimate Pop Culture Wiki

Tetris 2 (SNES) - Video Game Music Preservation Foundation Wiki

Tetris - Wikipedia

TETR.IO/Badges - TetrisWiki

Tetris (Spectrum HoloByte), Apple Wiki

Brenden on X: PSA regarding Tetris and its claimed June 6, 1984 release date That date is incorrect and was fabricated back in 2009 with prior sources citing the real creation date

Mario Party (series) - Super Mario Wiki, the Mario encyclopedia

Tetris (Arcade, System 16) - The Cutting Room Floor

Where did the name Tetris come from? - Quora

Tetris Classic - Wikipedia

M2 (game developer) - Wikiwand