Each character has a 30% chance of spawning a treasure chest. During events that chest has a 100% chance of containing a card + random amount of jewels. Events last for 15 minutes at the start of the hour. First three chests of the day will always contain cards.
Daily Treasure Hunting limit has been temporarily raised to 500
--- Popularity Contest Update ---
Thanks to Eiki-sama and other moderators verifying accounts over the years, I can now release a patch for popularity contests in which the results are based on verified accounts only.
What was once spammed by trolls, is now restored to meaningful Top 25 lists. Have a look!