Hello!
As a player who is new to Grand Strategy and relatively new to Stellaris (played around 70 hours), I’m hoping to get some advice on a late-game stalemate situation possibly involving some bugs. This is going to be a bit of a wall of text, but I feel I need to explain as best I can.
The situation revolves around the Prethoryn Scourge. Basically, soon after they arrived, a Fallen Empire awoke and I formed a Federation with them. We managed to halt their expansion pretty quickly and eventually purged their initial systems. As it stands, they now have a single planet left.
The main problem is that the Scourge seems to be stuck. They have a massive amount of Infestors just hanging out near their last planet, as well as a serious number of Star Broods. Just look at the screenshots: that poor UI doesn’t know what to do with all those fleets!

The following keeps happening on a loop with very minimal variation: they sent a constructor to a nearby system to build a military station, my Federation buddy goes over there to kill it, then they maybe chase a Star Boord to the neighbouring system, and finally they head home. Then the Scourge sends another constructor and the whole cycle starts over again. Literally seconds after they leave, the constructor arrives, and it takes them a while to turn around. Meanwhile, other Empires display similar one-track behaviors. Also, they send adorably small fleet of, like, two Destroyers.
The Scourge does send out Star Broods to planets, but all they do is bombard them. Endlessly. I kill a Brood, I leave, they send a new Brood, and it begins bombarding again. They never send an Infestor to actually take the planet. This feels like it’s not intended behavior, is it?
With the massive amount of military power surrounding the final Prethoryn planet, my Federation buddy won’t attack it (or immediately Emergency FTL if they ever do). Together, we could make a dent, but I can’t get them to cooperate in any way.
There’s more: I seem to have this bug, wherein my buddy will not accept any kind of war I suggest, and I cannot leave the Federation. What’s more, if they propose a war, they do so against the only other Federation in this playthrough, and the same cat-and-mouse mechanics play out on that scale as well: they hover over planets, bombarding them endlessly. If I step in and take a few planets, the enemy AI seems to send small fleets whenever I’m gone, only to pull out when I arrive. Honestly, it’s infuriating… All our forces combined, we could do something, anything, but without directly controlling the AI, I am forced to watch them send fleet after fleet to wipe out single constructors and fleets. At first, I was happy to just let them play their cat-and-mouse game while I expanded my fleet, but it’s come to a point where I really need to conquer more systems to deal with the maintenance costs of said fleet.
Is there anything I can do to get out of this stalemate? I’ll resort to save game editing if I have to.
As a player who is new to Grand Strategy and relatively new to Stellaris (played around 70 hours), I’m hoping to get some advice on a late-game stalemate situation possibly involving some bugs. This is going to be a bit of a wall of text, but I feel I need to explain as best I can.
The situation revolves around the Prethoryn Scourge. Basically, soon after they arrived, a Fallen Empire awoke and I formed a Federation with them. We managed to halt their expansion pretty quickly and eventually purged their initial systems. As it stands, they now have a single planet left.
The main problem is that the Scourge seems to be stuck. They have a massive amount of Infestors just hanging out near their last planet, as well as a serious number of Star Broods. Just look at the screenshots: that poor UI doesn’t know what to do with all those fleets!
The following keeps happening on a loop with very minimal variation: they sent a constructor to a nearby system to build a military station, my Federation buddy goes over there to kill it, then they maybe chase a Star Boord to the neighbouring system, and finally they head home. Then the Scourge sends another constructor and the whole cycle starts over again. Literally seconds after they leave, the constructor arrives, and it takes them a while to turn around. Meanwhile, other Empires display similar one-track behaviors. Also, they send adorably small fleet of, like, two Destroyers.
The Scourge does send out Star Broods to planets, but all they do is bombard them. Endlessly. I kill a Brood, I leave, they send a new Brood, and it begins bombarding again. They never send an Infestor to actually take the planet. This feels like it’s not intended behavior, is it?
With the massive amount of military power surrounding the final Prethoryn planet, my Federation buddy won’t attack it (or immediately Emergency FTL if they ever do). Together, we could make a dent, but I can’t get them to cooperate in any way.
There’s more: I seem to have this bug, wherein my buddy will not accept any kind of war I suggest, and I cannot leave the Federation. What’s more, if they propose a war, they do so against the only other Federation in this playthrough, and the same cat-and-mouse mechanics play out on that scale as well: they hover over planets, bombarding them endlessly. If I step in and take a few planets, the enemy AI seems to send small fleets whenever I’m gone, only to pull out when I arrive. Honestly, it’s infuriating… All our forces combined, we could do something, anything, but without directly controlling the AI, I am forced to watch them send fleet after fleet to wipe out single constructors and fleets. At first, I was happy to just let them play their cat-and-mouse game while I expanded my fleet, but it’s come to a point where I really need to conquer more systems to deal with the maintenance costs of said fleet.
Is there anything I can do to get out of this stalemate? I’ll resort to save game editing if I have to.