It might be more interesting for users to collect different regions as a group (or a single person?) by adding stickers in there.
For every region the one group with the most stickers gets points for it - for competition.
Or every group just has an overview of the number of collected countries or cities where at least one sticker is put.
It might be more interesting for users to collect different regions as a group (or a single person?) by adding stickers in there.
For every region the one group with the most stickers gets points for it - for competition.
Or every group just has an overview of the number of collected countries or cities where at least one sticker is put.