There isn't a strict linear progression through the DLCs as far as I know. It might be more rewarding to finish the main quest before starting summerset (I've heard that summerset is a continuation of the the main), but as far as I know the DLCs are structured so that they are related to each other, but not reliant on each other to tell the story. So like each DLC is a stand alone story that links together to the others to varying extents.I'm probably going to purchase summerset, morrowind, and clockwork city in a few days. What's the storyline like? I'm not done with the main quest, but I thought that after that comes imperial city as a 'last resort for Molag'. But then comes orsinium, I think that starts a new story. Is the order
Main>Imperial City and separately
Orsinium>Morrowind>Clockwork>Summerset?
Is the order
Main>Imperial City and separately
Orsinium>Morrowind>Clockwork>Summerset?
Can i play Imperial city solo without pvp?