Topic, How do you grow a level ?

You earn EXP:

When you complete a level (1 EXP)
When you rate a level (1 EXP until 100 ratings, 0.1 EXP after 100 ratings, 0.01 EXP after 1000 ratings)
When you create levels (5 EXP for an accepted level and 10 EXP for an official level)
When you create games (100 EXP)
When you complete achievements.
When you use your custom referral link provided on your profile page.
When you create a front page slide for a level (10 EXP, you must be a slideshow editor first).