Thinking about Vargr in the Fifth Frontier War.
There are two fleets that attack the imperium, but are they trying to conquer worlds or just raid them? How long can they loot a system before their holds are full and they need to turn back?
Although since the war lasts several years they certainly have time to raid and retreat multiple times.
I was thinking about using a loot number based on Population, Tech, and Importance of the target world. But then I remembered T5’s resources stat already factors all three of those in. So maybe a fleet raiding in a system gets Resources in loot each turn, but the Resources are temporarily degraded (-2) after each raid.
This will encourage the Vargr Admirals to keep moving, and eventually return home.