How to create restricted course with some code or password?

Hello @pliniohenrique,

All course contents are restricted from accessing without registration and enrollments. Additionally for paid courses no one can access course contents until their order status changes to completed.

You can enable “Course Visibility” from Tutor settings > course tab and this will ask them to login/register before they can view individual course page.

Make sure you didn’t delete student registration page and ensure Tutor login is enabled from Tutor settings > advanced tab.