I’m not really sure what to call these little mini events. Last month it was “Double Bonus Days” and this month it’s on the calendar as the old “Welcome Back Weekend” name.
Really though what it is called really isn’t very important.
What it means is that we have an experience boost in game automatically applied to our characters. This time we are all getting +100% experience boost starting today and lasting until September 23rd!
How this works is you will have a buff applied to your character that grants +100% boost to monster kills. It will not affect quest turn-ins or legendary item experience.
To my knowledge it cannot be turned off so if you are the type that refuses to use any kind of boosters, you’re kind of stuck (although you could avoid it at the Treasure Hunt).
This buff will stack with all other forms of experience boosters such as rested experience, store bought XP boosters and pocket item XP boosters.
I’ve seen no official post on the LOTRO site yet but it is on the calendar and has been confirmed as being active on the servers.