When working on my own performance mod I found the Crisis factions (Scourge & Contingency) use the extermination purge type by default [+1000% +600% purge speed], and the max # pops that can be purged at any one time is capped at 1 per month (the extermination purge is much slower than this).
There is a hard upper cap - at most 1 pop can assemble/grow or be purged ("Decline") per month, no matter how fast your growth/assembly/purging is.
If the Scourge purge at 1 pop per month, in my own tests, I find they often (though not 100% the time) expand far more aggressively - i.e. Purge speed is linked to crisis passivity, and a 'custom Crisis-only purge' setting (e.g. +10000% purge speed to guarantee you hit the 1pop a month cap) would benefit the scourge & contingency expansion rates - unbidden don't use ground troops.
Imagine the scourge purging a 100 pop world, at a rate of 1 pop/month it'd "only" take 100 months (~8.3 yrs) for them to kill everyone and move on. In reality its closer to 27 years or something based on the vanilla purge speed - and many worlds sit at well over 100 pops by lategame.
The "best" solution would be for crisis (and regular?) factions to parallel purge multiple pops - instead of purging 1 pop at a time - but i think that's hardcoded and havent found any way to mod it in to test it.
Parallel purging would let you simultaneously purge multiple pops on a colony/habitat at once.
The number of pops purged simultaneously could be tied to the purge method (e.g. with extermination letting you wipe out up to 10 pops at once, or forced labour letting you purge up to 25 pops at once) or it could be tied to a fraction of the planetsize (e.g. planetsize/5 rounded up to next whole integer).
If you actually want to wipe out an alien species quickly, in the current game, you have to scatter them evenly amongst all your owned colonies (as every extra planet/habitat you own means one more pop you can kill at once), so parallel purging would also cut down on needless/senseless micro and brain-dead waiting around.
Thoughts?
There is a hard upper cap - at most 1 pop can assemble/grow or be purged ("Decline") per month, no matter how fast your growth/assembly/purging is.
If the Scourge purge at 1 pop per month, in my own tests, I find they often (though not 100% the time) expand far more aggressively - i.e. Purge speed is linked to crisis passivity, and a 'custom Crisis-only purge' setting (e.g. +10000% purge speed to guarantee you hit the 1pop a month cap) would benefit the scourge & contingency expansion rates - unbidden don't use ground troops.
Imagine the scourge purging a 100 pop world, at a rate of 1 pop/month it'd "only" take 100 months (~8.3 yrs) for them to kill everyone and move on. In reality its closer to 27 years or something based on the vanilla purge speed - and many worlds sit at well over 100 pops by lategame.
The "best" solution would be for crisis (and regular?) factions to parallel purge multiple pops - instead of purging 1 pop at a time - but i think that's hardcoded and havent found any way to mod it in to test it.
Parallel purging would let you simultaneously purge multiple pops on a colony/habitat at once.
The number of pops purged simultaneously could be tied to the purge method (e.g. with extermination letting you wipe out up to 10 pops at once, or forced labour letting you purge up to 25 pops at once) or it could be tied to a fraction of the planetsize (e.g. planetsize/5 rounded up to next whole integer).
- To use the earlier 100pop example again, still assuming it takes just 1 month for a pop to be purged (for easy maths), on a 25 size world, 5 pops could decline simultaneously each month.
- This would bring total purge time down from 8.3 years to ~1.6 years ([100/5] / 12) which is a more reasonable kill-time
- Even the vanilla extermination speed with parallel purging, in this scenario, would bring total purge times down to under 8 years.
- After this the planet would be infested (or machinified in the case of the contingency) and the crisis would move on.
If you actually want to wipe out an alien species quickly, in the current game, you have to scatter them evenly amongst all your owned colonies (as every extra planet/habitat you own means one more pop you can kill at once), so parallel purging would also cut down on needless/senseless micro and brain-dead waiting around.
Thoughts?
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