There is a "pyramid" on the rise.
Basically you make a registration on a website, which requires only an username, password and phone number.
The entry fee is minimum of 100 USDT. Each day you enter the website and "make 50 spins" you get 4% on the amount you have entered with.
In around 20-25 days you double the amount of USDT you have entered with
If you can get people to enter using your unique invitation code, you get bonuses.
I realize its a huge scheme, but if it lasts for enough time, you can manage to get yourself a nice amount on top of your money.
Anyone interested - message me
Obviously Ponzi scheme that use free spin as way to justify the profit. This is good if you will not need to deposit 100USDT while getting the referral commission depends on the result of the spin so that user can have a chance to get much higher depending on there luck on the spin. The scheme that you brought up will surely be swarm by newbie user here especially if the casino website that offers this ponzi scheme will have a cool UI and good domain name.
This is definitely a ponzi!
I saw on internet - Abu Bakr got his shirt signed by PM of Pakistan. And people want to buy it. That way you will be so rich in a day.