Additional criteria for the Tetris fangame series
For a game to be added, besides the above-mentioned guidelines, a game needs to be unique in some way.
Even if the suggested fangame is a well-made, totally fine Tetris game, we are not going to track every clone out there.
There already are enough games on the site to cover any base experience that a Tetris game has. So if the fangame you're suggesting does not have something to make it stand-out and be a worthwhile addition to the site, it will be rejected.