It is solo friendly, very similar to Guild Wars but the game automatically gives you groups when you enter into an instance. The thing is, I have yet to play a mission where players were actually buffing each other or tanking, etc. Everyone just flies in, concentrates fire on the smallest ship, blows them to hell or dies, which happens with startling ease. This happens a lot, especially in the opening salvo as there's no way to lure away a single enemy ship and the designers tend to make a mob just a giant floating ball of ships and since there can be like 5-10 ships in a mob and 4 ships in your party and they ALL target the lead ship, well, they blow through your shields and kill you in the opening salvo. Not a big deal since you respawn right away and with the frequency of respawn points it's almost like dying and respawning is supposed to be a tactic rather than a penalty.