What service (CMS, forum, CMS plugin) allows you to organize multi-level access to the community?

Question

CMS

It is planned to implement a learning portal combined with various quests. Are there any services that have the following functionality: 1.After completing the quest, the user is sent a password for access, or simply given access rights to a new level. 2. In discussions, threads, users should indicate their "rank", as is usually done in forums. 3. The service must be installed standalone, no cloud solutions.

Answer 1

there is
wordpress (or whatever you like, at least Moodle) + proger