I’ve been playing Noumen Sky for several months now, I’ve played a little over 300 hours (on Steam) and the game is very exciting, battles in space on planets, construction, research, all this is worked out with soul, and I want to play further and further, but when it comes the thing about co-op is that not everything is so rosy here, there are no complaints about battles on planets at all, but in space a separate group of enemies will spawn for each player, and in the case when one player finished faster than the other and tries to help, then he faces the problem that enemies intended for another player do not react to others, damage does not pass through them, they cannot be aggroed against yourself, etc. Also, if there are two or more players in the system and when cargo ships are recognized, only one will be visible, but at the same time the game shows that the ship is in the system, but there is absolutely no interaction until other players recall the ships.
There are also small shortcomings with the construction of bases and structures in the cooperative. For example, if two players build two different houses, after exiting and further entering only one player who is not the owner of the base (the base computer does not belong to him), then he saw, at best, only his own construction would happen, at worst, a clean landscape.
These problems and complaints arose with the TOTAL amount of time spent in the game, and if some problems are already working or can be corrected by manipulating the settings, then please correct me.
And in a few words about the game: the game is very good and after understanding the basic mechanics and desire, you can quite easily find something to do, either alone or with a friend.