In 1996, I've read in a gaming magazine an article on non-standard tetris variations. You can see the scans of the magazine at the bottom of this post: http://mjr-blayne.livejournal.com/288242.html , and the translation can be found here: http://sites.google.com/site/polyfiguregames/ .
The years passed, and in 2011 I was re-reading this magazine and thought that I've never seen some of those modifications. So I checked if maybe the author made and uploaded the games somewhere. Soon, I've found his page, a couple of demos, and the author, mathematician Alexander Iglitsky, himself.
It occurred that he never implemented most of those ideas, but when I told him that now is the best time to publish non-standard games, he jumped at the opportunity, and in the following months we had about a dozen variations.
You can check our "whispering" trailer here: http://youtu.be/oS2Xup7vHtI and there's a demo showing one of the games, codenamed Yakoris: http://blayne.narod.ru/Polygures_public_demo.html (DOS only).
As you may have guessed, we are having some troubles finding a publisher, as authentic 1996 game-design doesn't stand a chance again hipsters ironically making fun of old games. Polygures is hard and not flashy. It probably won't sell. But at least it has a good story behind it - and a theory.