Do the pirates ever stop spawning? Like if you destroy all their bases, will they then stop spawning all the time? In my current game it's rather annoying having to deal with increasingly powerful stacks of pirate fleets, destroying my mining and research stations.
I did not put a hard limit on their respawn, but i did put some limits.
-Once a pirate spawn in a system, no new ones can appear there for at least 10 years.
-They can't spawn in or around a colonized system.
-Pirates harrassing your empire can't spawn very far from your borders.
-Pirates don't send their fleet farther than a low tier wormhole station could (ie same range regardless of FTL type).
-Pirate fleets remain small and are much weaker than same number of regular ships.
Limits on their targets :
-They don't attack homeworlds.
-They don't attack systems with spaceport station
-They don't attack systems with medium or large military stations
Another limit :
-Pirates fight each others, they do destroy rival pirate stations from time to time.
Tips :
Build military stations in all your systems, that should keep them away.
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I admit there might be some other things i could do to balance them, but i need some more feedback.