Project: Gorgon is a 3D fantasy MMORPG (massively-multiplayer online role-playing game) that features an immersive experience that allows the player to forge their own path through exploration and discovery. We won't be guiding you through a world on rails, and as a result there are many hidden secrets awaiting discovery. Project: Gorgon also features an ambitious skill based leveling system that bucks the current trend of pre-determined classes, thus allowing the player to combine skills in order to create a truly unique playing experience.
The Project: Gorgon development team is led by industry veteran Eric Heimburg. Eric has over a decade of experience working as a Senior and Lead Engineer, Developer, Designer and Producer on successful games such as Asheron’s Call 1 and 2, Star Trek Online and other successful Massively Multiplayer Online Games.
There is no instancing, but stronger players are in Rahu sewers only because they are capped in content, and it's new. In a released game, there doesn't seem be any particular reason a high level player would do that.
The "solo" part means only few mobs are elite. With some balancing it can be tuned so you can crawl through it solo or in a duo, as intended.
I think the bigger issue was just running past me and killing all the mobs, sometimes not even burying the corpses. I'm not sure how it worked in AC for example as I never played it as much as other MMO's but if I ever come across someone in a dungeon trying to slowly work their way along I'll go elsewhere or wait. Just common courtesy really. It's not just this dungeon though where it happens of course.