Guild Wars 2

have world bosses spawn on regular time schedules and location, then have off-time between, then have random time and location, then repeat.

regular time and location—> off-time—> random time and location—> off-time—> regular time and location

works for regulars and has surprises.

They did this a while back with an update in 2014.

This update made all bosses spawn at exact time periods multiple times throughout a day (of course with some options for Guilds to spawn at their leisure) so there are several chances to get in on a certain world boss per day, to suit regulars and casuals. This should suit more players’ play sessions than what it was previously (a cooldown timer that started on each world boss death, so the respawn time was recorded by the players on world boss timers etc).

I’m sure you know about world boss timers, but just in case, here is one that is very helpful in planning when to play to be able to participate in certain world bosses if you are looking to do them.

Edit: Grammar hammer.

Well, there’s world bosses in the game already that spawn at irregular times. Dredge Commissar, Ogre Wars (when it works), Fire Shaman, Eye of Zhaitan, Rhendak the Crazed, and all the Temple events in Orr. Should you want to have a world boss that might not be there when you go looking for it, you can seek those encounters out.