Do I have to complete all the tasks on the tree to finish the course? Agente 1 September 28, 2019 18:03 Updated Follow Yes, you have to complete all the tasks to finish the course. Related articles How many days does it take to complete a task? In what order do I have to do tasks? Why is a task not shown as completed even though I've advanced one day? What does the calendar mean? Where can I see how many days I've been on the island? How do I know if a task is suitable for a character? Comments 0 comments Article is closed for comments.