From what I understand, there are 2 versions of the game. Landmark is the sandbox type game where you can build your own stuff. You start off on an open landscape where players can build anything aside from giant penises and copyrighted material. The other version, Everquest Next, is like a normal MMO with destructible environments and its ''voxel'' based. If you see a guy coming after you and hes on a bridge, you can destroy the bridge and make him fall to his doom. If you have an ice wall ability, someone would literally have to find a way around it to get to you. The ground below you can be destroyed, revealing a different part of the map. Stuff like that..
The official site has some pretty cool stuff. Check it out.






