Probably all developers don’t have any written permission. But there are thousands of Tetris clones all over the world and I don’t think that TTC is pursuing the developers for the rights to the name or game. Especially if game is not titled ‘Tetris’. Besides my Trismania is not a copy of Tetris. It’s a similar game with 3D well. Besides, look at the date. I made it more than 15 years ago and it was downloadable all this time from my website. But if you feel unsafe, don’t download it, please. It’s your decision.
This reminds me of file sharing. In Germany, many people have used Napster, Gnutella, BitTorrent, Shareaza, µTorrent and other file-sharing programs for months or years, believing that this is safe software to illegally download and share software and movies. These psychopaths have not understood that file sharing is a work of organized crime. And it works quite differently from what the bastards of the so-called computer trade press claim. Many thousands of people had to pay thousands of euros in fines. What if someday many hundreds of computer game developers have to pay a lot of fine because they develop a game they are not allowed to develop?
However, don't worry about me ;-)
I have played Trismania and I like it very much.
It works fine for me with MX-15 Debian Jessie 32 bit and Wine 1.6.2-20.
Thank you. I understand that and respect your opinion. You’re right about music sharing and piracy. I agree with you. It’s a bit different case with software because I don’t copy the original protected game and share it, so it’s not piracy. I just made a similar game like many others, but I don’t earn money on it and I even wrote about the original Tetris in the help file included with game. I hope no one resents me about another one Tetris clone made in a homage for this great game. Thanks for the feedback about the Debian. I’ve heard that it works fine on Wine but never tried it.
I play the game on the specified system at 1280x1024
in full screen mode and it works great.
Have you read this...
https://itch.io/takedowns/2073998
However, that's mainly about the music.
I’ve read this. The problem with Setris was also because of the similar name to Tetris and the music. It’s funny, but the game has now changed title to Sandtrix and it’s allowed to exists. Well, we will see. If someone from TTC would ask me to remove the game, I do it and can’t help it. But until then I don’t feel I did something wrong if I don’t earn money on it and I give credits to the original author of Tetris.