7. Servers, aka leagues, are not like other MMOs

Have you noticed that when you create a new character in Path of Exile, you get a league selection screen, as opposed to a server selection. That's because there are no servers in the traditional sense. There's a standard league, which is like the standard game. Then there's a hardcore version of it (for bragging rights). Then you have a few other leagues depending on what's going on in terms of events.

With the first "expansion", there was a league that offered some unique gameplay features in the form of shrines to something called the Vaal (check the lore). I also remember there being a speed leveling league, where you create a character and then race to see who will reach max level the fastest. These happened rather often, but I'm not sure if it's still a thing with all the new updates. Yea, there's a lot of changes going on with a lot of updates, but we'll get into that in a second.