This is a well-known play on FOMO - there is that bit about the inherent fear of missing out on being top of leaderboard/in-game items/bonuses/etc. What's fascinating is just how easy this mechanic is applied to so many modern games and apps, and how hooked folks become on it even though they know what's going on.

"Ugh... they implemented this for FOMO... but damn I can't skip playing this game for a day because I am going to miss out on the +1 bonus to agility that's gonna be awarded if I log in 7 days in a row."