When adding tickets to your event (please check out this article to see how), put '0' (zero) as the value in the 'Ticket Type Price' for the ticket you want to be free.
This is how free tickets show on the event page to customers:
When adding tickets to your event (please check out this article to see how), put '0' (zero) as the value in the 'Ticket Type Price' for the ticket you want to be free.
This is how free tickets show on the event page to customers:
