Combat is not the only thing in the verse. In Star Citizen, you can also do social interaction with other pilots with the Social Module coming later this month. The developer presented a walkthrough video at gamescom 2015 to press and now they presented it to everyone. You can watch the 2 different versions of Social Module below.
On the other hand, Star Citizen gives a peek at multi-crew gameplay with 2 versions of gameplay videos. Multi-crew gameplay is a feature in the Arena Commander module, the flying mode of Star Citizen, and it allows players to to control ship, fire weapons, and walk around together.
Social Module screenshots