This addon offers logged in site visitors the opportunity to register that they will attend an event. For repeating events you can choose if the registration for a single repeat or for the series as a whole. 

After enabling this JEvents plugin you can choose to enable event registration when you create or edit an event. It is a very simple event registration - if you need more sophisticated functionality then please take a look at RSVP Pro - our gold member addon which offers more registration options, invitations and reminders.