Hey, as we all know that servers can be quite heavy on everyone, and never found such a guide on the internet myself, I'd like to take the initiative and condense all known information in a single topic. I have a 100/100 fibre optic connection myself, an i7 860, an HD7950 and 12GB of RAM which I use to host and play with. Initial settings Max players: This can vary in terms of activity of the players, but 6 seems to be the line where the lag increases enormously when more people join. Floating objects: Taxing as hell, 48 as maximum. Environment hostility: Not as taxing as you'd expect. Cataclysm and below will run just fine. Asteroid amount: depends on your RAM. Do you have 8GB? - Large will be your pick. If you have more RAM (also keep in mind that your system needs more as you will be running Windows and your own stuff as well, since there is no dedicated server yet). Extreme is for the people with higher RAM than 8GB, but you can get away with it on 8GB, depending on what kind of buffer you want to give yourself. Auto-save: off, a lag spike ensues every time you save, and I haven't met a lot of stability issues. Cargo ships: Preferably off. Depends on what your level of maintenance is (see below on SEToolbox). If you don't want to maintain it, then have it off. But of course you want to have fun as well. But in terms of lag; preferably off Weapons: Preferably off as well, but what fun is there in a server without weapons? So I would have this on on regardless though. And again, the increase in lag is merely temporarily when missiles and warheads are being fired, not a constant source. Server maintenance Now in terms of maintenance, when there is some lag, and you know you have flung some scrap into space, and you see cargo ships flying by at 2000km distance; Download SEToolbox and load your world. First, select on "type" and select all your floating objects by ticking the first one in the list, hold Shift, and select the last. Delete them all. Second, delete faraway entities by sorting the list on "Distance". Select all that are a safe distance away, say everything beyond 80KM and delete those. It's just cargo ships that flown away too far and scrap no one goes after anyway. Server policy This is something everyone can contribute to; proper policy to reduce lag. What completely detrimental to the framerate is, is lightning. Do not allow for constant stationary light source. No spotlights on the base. Spotlights are fine on mining ships, as they aren't active all the time, but just for a limited use of digging something away. Maintain the policy that you do not allow for stationary ships on dampeners. Have them landed on a magnetic foot, or just shut them down stationary in the space by pressing Y when sitting inside the cockpit. The thrusters tax the system in terms of light and activity, which is completely unnecessary when the ships are stationed anyway. Also, when people don't shut their ship down, their spotlights will stay on, which is detrimental because of aforementioned reason. Limit dynamic objects in use. Do not have constant rotors active, merely ones that are situational, like on doors or retractable paths from ships. When blowing something up, obliterate it completely so not a thousand entities float into space. Also take a look at the official performance guide here If people have more tips, please share them, and I will test them and incorporate them as well.