Gambling websites for in-game items were mega popular in the gaming industry at that time. So I decided to launch a website for cs:go skins too. I was not a programmer, that's why I had to find one. It took much time to create the website because it had a unique game mode. After everything was ready, I launched an ad campaign. The site immediately got hacked and took out all available in-game items that I bought for the winners. The bug was fixed. The ad campaign was relaunched. Unfortunately, there was no success there. You should have an enormous ad budget to fight competitors to promote the website in this niche. Since I invested all my money, I couldn't give up. It would be very painful. So I decided to redesign the site for real money and try to sell it to popular casinos. It worked. An online casino bought my project. They liked the unique gambling mode and wanted to add it to their casino. My investment was eventually recouped.
Now there is nothing left. The project name was "greenbully.com". There are still some videos on YouTube recorded by players. The domain was redirected to some porn site a few years ago. Apparently, the owners of the casino decided to diversify the risks and engage not only the gambling business.
I wouldn't go into such business now. This kind of business is not good for this world in my opinion.