It's a shame that it didn't work out for casino creators. The competition is strong which makes it difficult to get successful, especially by offering classical games. Selling the website might also be hard these days, but if you has a good tech and stuff, you should probably make a post about it in Marketplace section. Make sure you include screenshots of how website worked, perhaps a gif file file a small demo, at least a little part of the code behind it and you should probably be willing to trade a bit, since people might find that 1 bitcoin is too much. Good luck!