I WANNA TEST IT WHILE DEVELOPING! Moo work by having "fleets" where a "fleet" is any number of ships of different types, so as an example if you wanted to attack a colony you would have say 2 destroyers , 10 fighters and say 5 bombers. The bombers are for planet bombardment, fighter for fighting and maybe the destroyers firing at range (these could also fire on planets) You could do the same thing if you wanted to say go mining, you would send a fleet of x many mining craft backed up by a defence force. MOO was turn based though... I assume you are working on time? The fleets were shown by a simple icon and then the combat was turn based but again an MMORPG may have players offline so combat would have to be automated, I asked a similar question a while ago here http://www.gamedev.net/topic/611557-auto-combat-system/ In this kind of game people don't have to focus on the "sim" part of the game and can go round trying to kill other players for loot, economins isn't for everyone.