I guess I should explain...
I'm fairly new to DF, yet I've already created a mid-sized mod, and I found a something that works for extending worldgen length without increasing megabeast size in the raws or cave size in the parameters. (Or at least maximize the number of ages crammed into a single run. Best one to date: 18 cycles of alternating between age of legends/ age of heroes)
Essentially, I've added powers which are capable of reproducing, and aligned each with a sphere that makes sense for their habitat (I've got a desert variety which is aligned with minerals, an ocean variety which is aligned with water, etc.). Here's the code (They use some custom body templates):
[CREATURE:SCREAMER_DESERT]
[NAME:desert screamer:desert screamers:desert screamer]
[TILE:'S'][COLOR:4:0:1]
[MODVALUE:10]
[LIKES_FIGHTING][BUILDINGDESTROYER:2]
[GLOWTILE:'"'][GLOWCOLOR:4:0:0]
[LARGE_ROAMING][POWER][CANOPENDOORS]
[EXTRACT:desert screamer venom:7:0:1]
[EXTRACT_VALUE:100]
[EXTRACT_PARALYZE]
[NATURAL][PET_EXOTIC][FANCIFUL]
[PARALYZEIMMUNE][FREQUENCY:5]
[CAN_SPEAK][SLOW_LEARNER]
[GENPOWER:4]
[BLOODTYPE:C]
[TRAINABLE]
[POPULATION_NUMBER:2:3]
[CLUSTER_NUMBER:1:1]
[PETVALUE:2500]
[GRASSTRAMPLE:10]
[LARGE_PREDATOR][SAVAGE]
[CARNIVORE]
[FLIER]
[NOPAIN][EXTRAVISION][NOSTUN]
[BUILDINGDESTROYER:1]
[NOFEAR][NATURAL]
[PREFSTRING:fearsome calls]
[PREFSTRING:aerial divebombing of prey]
[PREFSTRING:faintly glowing eyes]
[BODY:HUMANOID_LEGLESS:4EYES:HEART:GUTS:ORGANS:MOUTH:MANDIBLES:BRAIN:TAIL:TAIL_STINGER:SPINE:4WINGS:3FINGERS]
[SIZE:16]
[MAXAGE:2000:3000]
[ATTACK:MAIN:BYTOKEN:TAIL_STINGER:sting:stings:1:6:PIERCE][SPECIALATTACK_INJECT_EXTRACT:50:100]
[ATTACK:MAIN:BYTYPE:MOUTH:bite:bites:1:3:GORE][ATTACKFLAG_CANLATCH]
[ATTACK:MAIN:BYTOKEN:MANDIBLES:bite:bites:1:3:PIERCE][ATTACKFLAG_CANLATCH]
[ATTACK:MAIN:BYTYPE:GRASP:punch:punches:1:2:BLUDGEON][ATTACKFLAG_WITH]
[FAT:1]
[NOCTURNAL]
[EQUIPS]
[LAYERING:100]
[NO_DRINK]
[SPHERE:MINERALS]
[SPHERE:CHAOS]
[BIOME:DESERT_BADLAND]
[BIOME:DESERT_ROCK]
[BIOME:DESERT_SAND]
[STANDARD_FLESH]
[HOMEOTHERM:10067]
[CREATURE:SCREAMER_JUNGLE]
[NAME:jungle screamer:jungle screamers:jungle screamer]
[TILE:'S'][COLOR:2:0:1]
[LIKES_FIGHTING][BUILDINGDESTROYER:2]
[MODVALUE:10]
[GLOWTILE:'"'][GLOWCOLOR:4:0:0]
[LARGE_ROAMING][POWER][CANOPENDOORS]
[EXTRACT:jungle screamer venom:7:0:1]
[EXTRACT_VALUE:100]
[EXTRACT_PARALYZE]
[NATURAL][PET_EXOTIC]
[PARALYZEIMMUNE][FREQUENCY:5]
[CAN_SPEAK][SLOW_LEARNER]
[GENPOWER:4][FANCIFUL]
[BLOODTYPE:C]
[TRAINABLE]
[POPULATION_NUMBER:2:3]
[CLUSTER_NUMBER:1:1]
[PETVALUE:2500]
[GRASSTRAMPLE:10]
[LARGE_PREDATOR][SAVAGE]
[CARNIVORE]
[NOPAIN][EXTRAVISION][NOSTUN]
[BUILDINGDESTROYER:1]
[NOFEAR][NATURAL]
[PREFSTRING:fearsome calls]
[PREFSTRING:ambushing of prey]
[PREFSTRING:faintly glowing eyes]
[BODY:HUMANOID_LEGLESS:4EYES:HEART:GUTS:ORGANS:MOUTH:MANDIBLES:BRAIN:TAIL:TAIL_STINGER:SPINE:3BASIC_3PARTLEGS:3FINGERS]
[SIZE:16]
[MAXAGE:2000:3000]
[ATTACK:MAIN:BYTOKEN:TAIL_STINGER:sting:stings:1:6:PIERCE][SPECIALATTACK_INJECT_EXTRACT:50:100]
[ATTACK:MAIN:BYTYPE:MOUTH:bite:bites:1:3:GORE][ATTACKFLAG_CANLATCH]
[ATTACK:MAIN:BYTOKEN:MANDIBLES:bite:bites:1:3:PIERCE][ATTACKFLAG_CANLATCH]
[ATTACK:MAIN:BYTYPE:GRASP:punch:punches:1:2:BLUDGEON][ATTACKFLAG_WITH]
[FAT:1]
[SPEED:500]
[NOCTURNAL]
[EQUIPS]
[NO_DRINK]
[SPHERE:MUCK]
[SPHERE:CHAOS]
[BIOME:ANY_TROPICAL_FOREST]
[STANDARD_FLESH]
[HOMEOTHERM:10067]
[LAYERING:100]
[SWIMS_INNATE][SWIM_SPEED:2500]
[CREATURE:SCREAMER_OCEAN]
[NAME:ocean screamer:ocean screamers:ocean screamer]
[TILE:'S'][COLOR:5:0:1]
[MODVALUE:10]
[LIKES_FIGHTING][BUILDINGDESTROYER:2]
[GLOWTILE:'"'][GLOWCOLOR:4:0:0]
[LARGE_ROAMING][POWER][CANOPENDOORS]
[EXTRACT:ocean screamer venom:7:0:1]
[EXTRACT_VALUE:100]
[EXTRACT_PARALYZE]
[NATURAL][PET_EXOTIC][FANCIFUL]
[PARALYZEIMMUNE][FREQUENCY:5]
[CAN_SPEAK][SLOW_LEARNER]
[GENPOWER:4]
[BLOODTYPE:C]
[TRAINABLE]
[POPULATION_NUMBER:2:3]
[CLUSTER_NUMBER:1:1]
[PETVALUE:2500]
[GRASSTRAMPLE:10]
[LARGE_PREDATOR][SAVAGE]
[CARNIVORE]
[NOPAIN][EXTRAVISION][NOSTUN]
[BUILDINGDESTROYER:1]
[NOFEAR][NATURAL]
[PREFSTRING:fearsome calls]
[PREFSTRING:ambushing of prey]
[PREFSTRING:faintly glowing eyes]
[BODY:HUMANOID_LEGLESS:4EYES:HEART:GUTS:ORGANS:MOUTH:MANDIBLES:BRAIN:TAIL:TAIL_STINGER:SPINE:SIX_TENTACLES:3FINGERS]
[SIZE:16]
[MAXAGE:2000:3000]
[ATTACK:MAIN:BYTOKEN:TAIL_STINGER:sting:stings:1:6:PIERCE][SPECIALATTACK_INJECT_EXTRACT:50:100]
[ATTACK:MAIN:BYTYPE:MOUTH:bite:bites:1:3:GORE][ATTACKFLAG_CANLATCH]
[ATTACK:MAIN:BYTOKEN:MANDIBLES:bite:bites:1:3:PIERCE][ATTACKFLAG_CANLATCH]
[ATTACK:MAIN:BYTYPE:GRASP:punch:punches:1:2:BLUDGEON][ATTACKFLAG_WITH]
[ATTACK:MAIN:BYTOKEN:RUTC:stab:stabs:1:3:PIERCE][ATTACKFLAG_WITH]
[ATTACK:MAIN:BYTOKEN:LUTC:stab:stabs:1:3:PIERCE][ATTACKFLAG_WITH]
[ATTACK:MAIN:BYTOKEN:RMTC:stab:stabs:1:3:PIERCE][ATTACKFLAG_WITH]
[ATTACK:MAIN:BYTOKEN:LMTC:stab:stabs:1:3:PIERCE][ATTACKFLAG_WITH]
[ATTACK:MAIN:BYTOKEN:RLTC:stab:stabs:1:3:PIERCE][ATTACKFLAG_WITH]
[ATTACK:MAIN:BYTOKEN:LLTC:stab:stabs:1:3:PIERCE][ATTACKFLAG_WITH]
[FAT:1]
[SPEED:1500]
[NOCTURNAL]
[EQUIPS]
[NO_DRINK]
[BIOME:OCEAN_TROPICAL]
[BIOME:RIVER_TROPICAL_FRESHWATER]
[BIOME:RIVER_TROPICAL_BRACKISHWATER]
[BIOME:RIVER_TROPICAL_SALTWATER]
[BIOME:LAKE_TROPICAL_FRESHWATER]
[BIOME:LAKE_TROPICAL_BRACKISHWATER]
[BIOME:LAKE_TROPICAL_SALTWATER]
[STANDARD_FLESH]
[HOMEOTHERM:10067]
[LAYERING:100]
[SPHERE:WATER]
[SPHERE:CHAOS]
[SWIMS_INNATE][SWIM_SPEED:500]
I've also added an "advanced" civ, which use laser weapons (modded crossbows
), and they're pretty tough, even unarmed.
(They're about 8 feet tall)
One example (I forgot to take screenshots, and I've since deleted the file): I was testing a "feral" version (live in caves instead of towns, don't use advance equipment) in adventure mode, and I got shot with the most powerful laser weapon I modded in, and it scorched the creature's lower body, and burnt one of his kidneys to a crisp, and he just kept going, none the worse for wear (if you don't count the heavy bleeding, that is. He shook that off no problem, though.)