How is the leaderboard scored?

Each mission pays its points once per guest, so uploading five photos for one mission scores the same as uploading one.

Every mission is worth its points once. Uploading five photos for “Group Selfie” scores exactly what one photo would, so there is nothing to gain by spamming a mission — the game rewards range rather than volume.

The leaderboard shows the top guests, and your own standing whether or not you are among them. The name shown comes from your public photos; leave the name blank and you appear simply as “Guest”, and untick “Show my name with my photos” and you appear as “A guest”. A guest whose photos are all private still scores, but does not appear on the board — no name is ever taken from a private photo.

Scores are worked out fresh each time the board is shown rather than banked, so a photo the host deletes takes its points with it, as does a mission the host removes.

Missions belong to one event: a photo can only ever be scored against a mission on the event you joined.