I am making a Tetris clone with a new idea but I won't use the Tetris or Tetriminos name in the game I will refer to them as Tetrominos. Will there be copyright issues if I release this game? Does the Tetris company own the right to produce "Tetris" games?

  • \$\begingroup\$ You could get sued for trademark infringement because of the resemblance between the two terms would be there to lure the users. \$\endgroup\$
    – Vaillancourt
    Commented Feb 4, 2017 at 13:10
  • \$\begingroup\$ You may be interested in the article Clone Wars: The Five Most Important Cases Every Game Developer Should Know, in particular the "Triple Town v. Yeti Town" case of 2012 may have created a loophole to copyright game mechanics. \$\endgroup\$
    – Theraot
    Commented Feb 6, 2017 at 5:14

1 Answer 1


"Tetris" is a trademark of The Tetris Company, LLC. Game mechanics are not patentable or covered by copyright, but the name trademarks "Tetris" and "tetrimino" (note the spelling) are theirs.

However, the company have been annoyingly successful at bullying simple clones of their game out of marketplaces using the legal system anyway, even though the legal standing of their claims to ownership of the exact playfield size and shape of pieces is highly questionable.


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