so recently I uploaded this addon to the workshop. I made it with a friend of mine and I think it really is a money making machine.
Your users can buy T-Pass or D-Pass on your website if you have prometheus or something installed.
Your user buys 100 T-Pass and 50 D-Pass for 10€ on your website. It is stored on the server and whenever he types !pass he can activate them.
If you are interrested:
More informations are on the workshop link, feel free to comment!