Deepolis has 3 factions:
Each faction has it's own unique ships, and each faction has the ability to equip more of 1 item than another. For example, Jafnhar subs can equip 110 cannons, while sacrificing 10 hull armor slots. Scion can equip more armor, at the sacrifice of more cannons. Nauts are equal in their equipment, but they have the ability to run trade at all stations, and vice versa, whereas Jafnhar and Scion, since they are at war, cannot trade or have a safe zone at each other's stations. Nauts, being neutral, naturally have the ability to trade at all stations, and Scion and Jafnhar can trade at all Naut stations.