
I stopped selling my games cause most would just suffer the registration nagging screen till the game would kick them out. Then, most would search for a registration code online.
When you register a game, you encourage creativity, development of existing and new software, pay for the fees of domain, hosting, bandwidth ...
But this is not really what people think about, and it's normal. Having to spend time finding and excluding false registration keys, I finally gave up and removed the nagging screens and the registration process in my games.
So there is no need to register the games cause they are now completely free, and you should do like most and just enjoy playing them.
Either way, you get the game no charge and play cards as much as you like, or generate word games to fill them on your PC.
If you still want register one of my free games, to show you appreciate all the time I put in making them, you can do so and I thank you for it.
Since most people would ask for a crédit, once they saw my games are
really complete and free, I removed the registration buttons for my
games.