I'm Working on a new Series which is (TBH), It would be 6 Worlds With 6 Levels each, With different kinds of gameplay and experiments ill be doing.
Publish a certain amount of levels
Rate a certain amount of levels
Get a certain number of rates on a level
Be a member for a certain number of days. Login required to activate new achievement.
Add unique images to other users' levels (must be relatively new levels).
Get a certain number of contest points.