How do I host a tournament with a cash prize?

Create a tournament and fund the prize the ticketed way: competitors enter free, fans buy spectator tickets, and you decide what slice of every ticket feeds the prize purse. You can also top up the purse from your own Coins to guarantee a headline number. The winner takes the purse, and for most games you will set a scheduled start time so a referee can confirm the result.

Setting it up

Create the tournament: pick the game, bracket type, and size, give it a banner and a name.
Set the start time. Games without automatic result detection require a scheduled start at least an hour ahead, so a referee can confirm results.
Configure tickets: set the spectator ticket price, the audience (public, followers, or subscribers), capacity, and, the key lever, the percentage of each ticket that goes into the prize purse.
Optionally top up the purse from your own Coins: a guaranteed floor makes the event worth entering before a single ticket sells. Your top-up is held safely and returned if the event is cancelled before it starts.
Publish. Competitors register free, fans buy tickets, and the purse grows in public view.

The money rules, plainly

Competitors never pay to enter a ticketed event, which is what keeps prize competition clean and legal.
The coin prize is winner-takes-all. In squad events it pays the winning squad's treasury.
Prizes release only on confirmed results, automatic for supported games, referee-confirmed for the rest.
Cancelled before start? Ticket buyers are refunded in full and your top-up comes back.