That would be awkward and a bit nerve-racking at first.
Would start out with awkward silence until someone says something. It would slowly turn into maybe a groups of at least 2-3 people around the living room talking to each other, and some off in the corner unable to connect to to others. I can see that happening. Well at least I know at this party, there is a moderate chance I can finally meet someone that I can relate to or have a real friend, that is the good news since I would not bother with parties in reality. There not for me
Then again, I'm very cautious around new people, and I'm not one to start a conversation, so I would hope someone would approach me first.