Oh, chimeras and spider queens each use a different body detail plan than regular creatures (they have bits that are both skinned, scaled, and chitin-covered/lack bones, so it needed a funny detail plan to allow those to work.) Adventure craft didn't modify these body detail plans, so it must be trying to call on materials and tissues adventure craft adds. I would suggest opening up the body_detail_plan_default.txt and finding where these materials and tissues are being added by adventurecraft and copy-pasting them into the body detail plans spider_queen_materials and _tissues and chimera_all_materials and _tissues in body_detail_plan_spellcrafts.txt
That might solve the crashes but it might not. I don't know enough about adventure craft.
[edit]
I downloaded and looked into it and it looks like it did add a new entity definition, NATIVE_ANIMAL_PEOPLES, which hasnt had its LEISURE_TIME value set to a negative number. Try changing it to -5, along with every other civ that has a 0 or positive value, and see if that stops the crashes
I successfully generated a world!
It was kind of amusing because the errorlogs kept telling me one after another that the Chimera and the Spider Queen wanted this, and that, and this, and that, and now it's content, lol.
Even though I was able to successfully generate a large world of 125 (short) years, should the Chimera's and the Spider Queen's materials and tissues look like this? Actually, I'll skip the Spider Queen's since the errorlogs only wanted to me give her 'TANNEDCHITIN' alongside her regular 'CHITIN' as 'ADD_MATERIAL', but the errorlogs wanted me to add quite a bit for the Chimera (I added a '+' by the new entries):
[BODY_DETAIL_PLAN:CHIMERA_ALL_MATERIALS]
[ADD_MATERIAL:BLOOD:BLOOD_TEMPLATE]
[ADD_MATERIAL:ICHOR:ICHOR_TEMPLATE]
[ADD_MATERIAL:PUS:PUS_TEMPLATE]
[ADD_MATERIAL:SKIN:SKIN_TEMPLATE]
[ADD_MATERIAL:SCALE:SCALE_TEMPLATE]
[ADD_MATERIAL:TANNEDSCALE:TANNED_SCALE_TEMPLATE] +
[ADD_MATERIAL:CHITIN:CHITIN_TEMPLATE]
[ADD_MATERIAL:TANNEDCHITIN:TANNED_CHITIN_TEMPLATE] +
[ADD_MATERIAL:FAT:FAT_TEMPLATE]
[ADD_MATERIAL:MUSCLE:MUSCLE_TEMPLATE]
[ADD_MATERIAL:BONE:BONE_TEMPLATE]
[ADD_MATERIAL:CARTILAGE:CARTILAGE_TEMPLATE]
[ADD_MATERIAL:SINEW:SINEW_TEMPLATE]
[ADD_MATERIAL:NAIL:NAIL_TEMPLATE]
[ADD_MATERIAL:HAIR:HAIR_TEMPLATE]
[ADD_MATERIAL:HORN:HORN_TEMPLATE]
[ADD_MATERIAL:HOOF:HOOF_TEMPLATE]
[ADD_MATERIAL:SKULL:SKULL_TEMPLATE] +
[ADD_MATERIAL:CLEANEDSKULL:CLEANED_SKULL_TEMPLATE] +
[ADD_MATERIAL:TOOTH:TOOTH_TEMPLATE]
[ADD_MATERIAL:EYE:EYE_TEMPLATE]
[ADD_MATERIAL:NERVE:NERVE_TEMPLATE]
[ADD_MATERIAL:BRAIN:BRAIN_TEMPLATE]
[ADD_MATERIAL:LUNG:LUNG_TEMPLATE]
[ADD_MATERIAL:HEART:HEART_TEMPLATE]
[ADD_MATERIAL:LIVER:LIVER_TEMPLATE]
[ADD_MATERIAL:GUT:GUT_TEMPLATE]
[ADD_MATERIAL:STOMACH:STOMACH_TEMPLATE]
[ADD_MATERIAL:GIZZARD:GIZZARD_TEMPLATE]
[ADD_MATERIAL:PANCREAS:PANCREAS_TEMPLATE]
[ADD_MATERIAL:SPLEEN:SPLEEN_TEMPLATE]
[ADD_MATERIAL:KIDNEY:KIDNEY_TEMPLATE]
[ADD_MATERIAL:LEATHER:LEATHER_TEMPLATE]
[ADD_MATERIAL:PARCHMENT:PARCHMENT_TEMPLATE]
[ADD_MATERIAL:TALLOW:TALLOW_TEMPLATE]
[ADD_MATERIAL:SOAP:SOAP_TEMPLATE]
[ADD_MATERIAL:EGGSHELL:EGGSHELL_TEMPLATE]
[ADD_MATERIAL:EGG_WHITE:EGG_WHITE_TEMPLATE]
[ADD_MATERIAL:EGG_YOLK:EGG_YOLK_TEMPLATE]
[BODY_DETAIL_PLAN:CHIMERA_ALL_TISSUES]
[ADD_TISSUE:SKIN:SKIN_TEMPLATE]
[ADD_TISSUE:SCALE:SCALE_TEMPLATE]
[ADD_TISSUE:CHITIN:CHITIN_TEMPLATE]
[ADD_TISSUE:FAT:FAT_TEMPLATE]
[ADD_TISSUE:MUSCLE:MUSCLE_TEMPLATE]
[ADD_TISSUE:BONE:BONE_TEMPLATE]
[ADD_TISSUE:CARTILAGE:CARTILAGE_TEMPLATE]
[ADD_TISSUE:HAIR:HAIR_TEMPLATE]
[ADD_TISSUE:SINEW:SINEW_TEMPLATE]
[ADD_TISSUE:NAIL:NAIL_TEMPLATE]
[ADD_TISSUE:HORN:HORN_TEMPLATE]
[ADD_TISSUE:HOOF:HOOF_TEMPLATE]
[ADD_TISSUE:SKULL:SKULL_TEMPLATE] +
[ADD_TISSUE:TOOTH:TOOTH_TEMPLATE]
[ADD_TISSUE:EYE:EYE_TEMPLATE]
[ADD_TISSUE:NERVE:NERVE_TEMPLATE]
[ADD_TISSUE:BRAIN:BRAIN_TEMPLATE]
[ADD_TISSUE:LUNG:LUNG_TEMPLATE]
[ADD_TISSUE:HEART:HEART_TEMPLATE]
[ADD_TISSUE:LIVER:LIVER_TEMPLATE]
[ADD_TISSUE:GUT:GUT_TEMPLATE]
[ADD_TISSUE:STOMACH:STOMACH_TEMPLATE]
[ADD_TISSUE:GIZZARD:GIZZARD_TEMPLATE]
[ADD_TISSUE:PANCREAS:PANCREAS_TEMPLATE]
[ADD_TISSUE:SPLEEN:SPLEEN_TEMPLATE]
[ADD_TISSUE:KIDNEY:KIDNEY_TEMPLATE]I'm mainly hoping those new entries won't result in any unintended abnormalities that will stray away from how you intended their bodies to be.
Oh! Another interesting detail is that I didn't have to change any of the civilizations' 'LEISURE_TIME' and 'MERRIMENT' to '-5' to avoid a worldgen crash, but I may have just been lucky; I can test a few more large world generations to be certain.
If I do not crash without having to alter those value tokens, do you think my files (despite having Adventurecraft's files in the mix) could help with fixing that pesky bug?