I want to know when celestial Basin bosses are showing up.

[NeungG]

I waited there for a long time but no bosses.....Is there anything that I need to do to spawn bosses?

[Li Qingzhao]

Old guides say that the bosses spawn every 43 min. I waited and it doesn't work that way. Ingame no one has any other ideas. One single person claimed you have to kill something (not specified) in the basin.

 

So basically we have no information.

[lillvargen]

I think it is ammount of killed mobs that spawn them now

[LunarS0ng]

I have a theory because I had the exact same question, so I stayed up literally 24 hours monitoring the stupid map to see how the thing behaved and the spawn time was completely random... from one hour and forty minutes to three hours and 15 minutes...

Then I remember that not long ago there were AFK bots farming on this map to get easy EXP and bosses used to spawn much more often, so I decided to start doing the mini-quest on the map to get peaches and by doing that I got the chance to spawn a Boss in 30 minutes. (This worked 2 times).

Again, this was me fooling around and trying to better understand how the system works on this map, so I can't say that this is 100% true for making them appear.

[LunarS0ng]

Today I did the same to force Bosses to appear and now I can say confidently that yes, doing the quest to get peaches help substantially to make them appear.