The mystery box used to be obtained as a reward from random events. Before the random event update, the Quiz Master random event would reward the player with a choice between the Mystery box or 1,000 coins. This was a gamble, as the box could contain items worth both more and less than 1,000 coins.
After an update to random events, the 1,000 coins benchmark was no longer important, as there was not an option between a guaranteed 1,000 coins and a random reward. Instead, players were awarded with a Random event gift, with a Mystery box being one of available rewards. Choosing the Mystery box over other rewards from the Random event gift was still a gamble, however, as most other rewards from the Random event gift were worth more than most rewards from the Mystery box. The Mystery box can be banked, however, it can't be traded.
Mystery boxes received from Court Cases do not stack with the ones obtained from random events.
|Old boot(m)||1||Common||Not sold|
|Pure essence||30 (noted)||Uncommon||720|
|Mithril 2h sword||1||Rare||3,569|
|Rune platebody||1||Very rare||37,480|
|Tooth half of a key(m)||1||Very rare||15,344|
|Loop half of a key(m)||1||Very rare||11,226|