The Keep:Library of Tasks and Challenges

Description
The Library of Shared Lists is a guild (direct link) where you can share and review lists of habits, dailies, todos, rewards.

The challenges serve mostly as examples and inspiration how your own tasks could look - they either contain tasks that many people are trying to do (for example, brush teeth, pay bills, exercise), or they demonstrate interesting ways to use HabitRPG (for example, gamifying tasks, making monthly tasks, making a "gold bank").

Therefore, the Library challenges are usually permanent (without planned end, winner, or prize). They are meant less for participating (though that is possible as well) and more for copying their tasks and customizing them for yourself.