No Man's Sky launched a free update (on the back of several other major updates) called NEXT that amoungst other things includes 4 person coop multiplayer.
It pretty much feels like the game the promised (if you had the slightest common sense about the feature list). Multiplayer is there, Capital ships are there, base building is there, creature and world variety is much better (even if it can never reach the level the hype got to)
Its half price on steam for the next 25 hours at time of writing and at that price in its current state I think its a definite recommend. (Don't buy off GOG atm as the DRM free version doesn't have multiplayer support as that works through Steam friends lists)
E.