Like you usually host server for garrys mod, except you set up this as gamemode

Originally posted by Leogo:

What do you need to do for a server to run jazztronauts?

I will explain how to actually do it. when you click start new game, there should be something on the side. on top of that is a green button saying singleplayer, to open up/host a server, click that green button and choose a player limit. once your done with that. select a map on the menu and click the blue Start Game button on the sidebar thing.