rendered paste bodyAdd this to entity_default above the ENTITY:MOUNTAIN (dwarf) entry and after [OBJECT:ENTITY]
--------------------------
[ENTITY:ARACHNIDS]
[CREATURE:ARACHNID]
[CIV_CONTROLLABLE]
[ADVENTURE_TIER:4]
[INDIV_CONTROLLABLE]
[TRANSLATION:DWARF]
[DIGGER:ITEM_WEAPON_PICK]
[WEAPON:ITEM_WEAPON_AXE_BATTLE]
[WEAPON:ITEM_WEAPON_HAMMER_WAR]
[WEAPON:ITEM_WEAPON_SWORD_SHORT]
[WEAPON:ITEM_WEAPON_SPEAR]
[WEAPON:ITEM_WEAPON_MACE]
[WEAPON:ITEM_WEAPON_CROSSBOW]
[AMMO:ITEM_AMMO_BOLTS]
[ARMOR:ITEM_ARMOR_PLATEMAIL:COMMON]
[ARMOR:ITEM_ARMOR_CHAINMAIL:COMMON]
[ARMOR:ITEM_ARMOR_LEATHER:COMMON]
[ARMOR:ITEM_ARMOR_COAT:UNCOMMON]
[ARMOR:ITEM_ARMOR_SHIRT:UNCOMMON]
[ARMOR:ITEM_ARMOR_CLOAK:COMMON]
[ARMOR:ITEM_ARMOR_TUNIC:UNCOMMON]
[ARMOR:ITEM_ARMOR_TOGA:UNCOMMON]
[ARMOR:ITEM_ARMOR_VEST:UNCOMMON]
[ARMOR:ITEM_ARMOR_DRESS:UNCOMMON]
[ARMOR:ITEM_ARMOR_ROBE:COMMON]
[HELM:ITEM_HELM_HELM:COMMON]
[HELM:ITEM_HELM_CAP:UNCOMMON]
[HELM:ITEM_HELM_HOOD:COMMON]
[GLOVES:ITEM_GLOVES_GAUNTLETS:COMMON]
[GLOVES:ITEM_GLOVES_GLOVES:COMMON]
[GLOVES:ITEM_GLOVES_MITTENS:UNCOMMON]
[SHOES:ITEM_SHOES_SHOES:UNCOMMON]
[SHOES:ITEM_SHOES_BOOTS:COMMON]
[SHOES:ITEM_SHOES_BOOTS_LOW:UNCOMMON]
[SHOES:ITEM_SHOES_SOCKS:UNCOMMON]
[PANTS:ITEM_PANTS_PANTS:UNCOMMON]
[PANTS:ITEM_PANTS_GREAVES:COMMON]
[PANTS:ITEM_PANTS_LEGGINGS:COMMON]
[SHIELD:ITEM_SHIELD_SHIELD]
[SHIELD:ITEM_SHIELD_BUCKLER]
[SIEGEAMMO:ITEM_SIEGEAMMO_BALLISTA]
[TRAPCOMP:ITEM_TRAPCOMP_GIANTAXEBLADE]
[TRAPCOMP:ITEM_TRAPCOMP_ENORMOUSCORKSCREW]
[TRAPCOMP:ITEM_TRAPCOMP_SPIKEDBALL]
[TRAPCOMP:ITEM_TRAPCOMP_LARGESERRATEDDISC]
[TRAPCOMP:ITEM_TRAPCOMP_MENACINGSPIKE]
[TOY:ITEM_TOY_PUZZLEBOX]
[TOY:ITEM_TOY_BOAT]
[TOY:ITEM_TOY_AXE]
[TOY:ITEM_TOY_MINIFORGE]
[CLOTHING]
[SUBTERRANEAN_CLOTHING]
[CURRENCY_BY_YEAR]
[CURRENCY:COPPER:1]
[CURRENCY:SILVER:5]
[CURRENCY:GOLD:15]
[BIOME_SUPPORT:ANY_WETLAND:2]
[BIOME_SUPPORT:ANY_DESERT:3]
[BIOME_SUPPORT:ANY_FOREST:1]
[BIOME_SUPPORT:MOUNTAIN:4]
[BIOME_SUPPORT:ANY_GRASSLAND:1]
[BIOME_SUPPORT:ANY_SAVANNA:1]
[BIOME_SUPPORT:ANY_SHRUBLAND:1]
[BIOME_SUPPORT:ANY_RIVER:2]
[START_BIOME:MOUNTAIN]
[SELECT_SYMBOL:WAR:NAME_WAR]
[SUBSELECT_SYMBOL:WAR:VIOLENT]
[SELECT_SYMBOL:BATTLE:NAME_BATTLE]
[SUBSELECT_SYMBOL:BATTLE:VIOLENT]
[SELECT_SYMBOL:SIEGE:NAME_SIEGE]
[SUBSELECT_SYMBOL:SIEGE:VIOLENT]
[SELECT_SYMBOL:ROAD:NAME_ROAD]
[SELECT_SYMBOL:TUNNEL:NAME_TUNNEL]
[SELECT_SYMBOL:BRIDGE:NAME_BRIDGE]
[SELECT_SYMBOL:WALL:NAME_WALL]
[SELECT_SYMBOL:ALL:MYTHIC]
[SELECT_SYMBOL:ALL:VIOLENT]
[SELECT_SYMBOL:ALL:DEATH]
[SELECT_SYMBOL:ALL:UNTOWARD]
[CULL_SYMBOL:ALL:DOMESTIC]
[CULL_SYMBOL:ALL:FLOWERY]
[CULL_SYMBOL:ALL:HOLY]
[CULL_SYMBOL:ALL:PEACE]
[CULL_SYMBOL:ALL:NEGATOR]
[CULL_SYMBOL:ALL:GOOD]
[CULL_SYMBOL:ALL:UGLY]
[FRIENDLY_COLOR:7:0:0]
[DEFAULT_SITE_TYPE:CAVE_DETAILED]
[LIKES_SITE:CAVE_DETAILED]
[TOLERATES_SITE:CITY]
[TOLERATES_SITE:TREE_CITY]
[TOLERATES_SITE:RUIN]
[SITE_LEADER_TYPE:DEFAULT]
[ACTIVE_SEASON:SPRING]
[ACTIVE_SEASON:SUMMER]
[ACTIVE_SEASON:AUTUMN]
[ACTIVE_SEASON:WINTER]
[ART_IMAGE_ELEMENT_MODIFIER:PLANT:64]
[ART_IMAGE_ELEMENT_MODIFIER:TREE:64]
[ITEM_IMPROVEMENT_MODIFIER:RINGS_HANGING:64]
[ITEM_IMPROVEMENT_MODIFIER:BANDS:384]
[ITEM_IMPROVEMENT_MODIFIER:SPIKES:384]
[MAX_STARTING_CIV_NUMBER:100]
[START_GROUP_NUMBER:10]
[MAX_POP_NUMBER:10000]
[MAX_SITE_POP_NUMBER:120]
[RELIGION:PANTHEON]
[WORLD_CONSTRUCTION:WALL]
[WORLD_CONSTRUCTION:BRIDGE]
[WORLD_CONSTRUCTION:ROAD]
[PERMITTED_JOB:MINER]
[PERMITTED_JOB:CARPENTER]
[PERMITTED_JOB:BOWYER]
[PERMITTED_JOB:WOODCUTTER]
[PERMITTED_JOB:ENGRAVER]
[PERMITTED_JOB:MASON]
[PERMITTED_JOB:ANIMAL_CARETAKER]
[PERMITTED_JOB:ANIMAL_TRAINER]
[PERMITTED_JOB:HUNTER]
[PERMITTED_JOB:TRAPPER]
[PERMITTED_JOB:ANIMAL_DISSECTOR]
[PERMITTED_JOB:FURNACE_OPERATOR]
[PERMITTED_JOB:WEAPONSMITH]
[PERMITTED_JOB:ARMORER]
[PERMITTED_JOB:BLACKSMITH]
[PERMITTED_JOB:METALCRAFTER]
[PERMITTED_JOB:GEM_CUTTER]
[PERMITTED_JOB:GEM_SETTER]
[PERMITTED_JOB:WOODCRAFTER]
[PERMITTED_JOB:STONECRAFTER]
[PERMITTED_JOB:LEATHERWORKER]
[PERMITTED_JOB:BONE_CARVER]
[PERMITTED_JOB:WEAVER]
[PERMITTED_JOB:CLOTHIER]
[PERMITTED_JOB:GLASSMAKER]
[PERMITTED_JOB:STRAND_EXTRACTOR]
[PERMITTED_JOB:FISHERMAN]
[PERMITTED_JOB:FISH_DISSECTOR]
[PERMITTED_JOB:FISH_CLEANER]
[PERMITTED_JOB:CHEESE_MAKER]
[PERMITTED_JOB:MILKER]
[PERMITTED_JOB:COOK]
[PERMITTED_JOB:THRESHER]
[PERMITTED_JOB:MILLER]
[PERMITTED_JOB:BUTCHER]
[PERMITTED_JOB:TANNER]
[PERMITTED_JOB:DYER]
[PERMITTED_JOB:PLANTER]
[PERMITTED_JOB:HERBALIST]
[PERMITTED_JOB:BREWER]
[PERMITTED_JOB:SOAP_MAKER]
[PERMITTED_JOB:POTASH_MAKER]
[PERMITTED_JOB:LYE_MAKER]
[PERMITTED_JOB:WOOD_BURNER]
[PERMITTED_JOB:MECHANIC]
[PERMITTED_JOB:SIEGE_ENGINEER]
[PERMITTED_JOB:SIEGE_OPERATOR]
[PERMITTED_JOB:PUMP_OPERATOR]
[PERMITTED_JOB:CLERK]
[PERMITTED_JOB:ADMINISTRATOR]
[PERMITTED_JOB:TRADER]
[PERMITTED_JOB:ARCHITECT]
[ETHIC:KILL_ENTITY_MEMBER:JUSTIFIED_IF_EXTREME_REASON]
[ETHIC:KILL_NEUTRAL:ONLY_IF_SANCTIONED]
[ETHIC:KILL_ENEMY:ACCEPTABLE]
[ETHIC:KILL_ANIMAL:ACCEPTABLE]
[ETHIC:KILL_PLANT:ACCEPTABLE]
[ETHIC:TORTURE_AS_EXAMPLE:JUSTIFIED_IF_EXTREME_REASON]
[ETHIC:TORTURE_FOR_INFORMATION:JJUSTIFIED_IF_EXTREME_REASON]
[ETHIC:TORTURE_FOR_FUN:SHUN]
[ETHIC:TORTURE_ANIMALS:PUNISH_REPRIMAND]
[ETHIC:TREASON:PUNISH_CAPITAL]
[ETHIC:OATH_BREAKING:UNTHINKABLE]
[ETHIC:LYING:PERSONAL_MATTER]
[ETHIC:VANDALISM:PUNISH_SERIOUS]
[ETHIC:TRESPASSING:PERSONAL_MATTER]
[ETHIC:THEFT:PERSONAL_MATTER]
[ETHIC:ASSAULT:JUSTIFIED_IF_SELF_DEFENSE]
[ETHIC:SLAVERY:MISGUIDED]
[ETHIC:EAT_SAPIENT_OTHER:ACCEPTABLE]
[ETHIC:EAT_SAPIENT_KILL:ACCEPTABLE]
[ETHIC:MAKE_TROPHY_SAME_RACE:APPALLING]
[ETHIC:MAKE_TROPHY_SAPIENT:APPALLING]
[ETHIC:MAKE_TROPHY_ANIMAL:APPALING]
[METAL_PREF]
[GEM_PREF]
[STONE_PREF]
[DIPLOMAT]
[DIPLOMAT_BODYGUARDS]
[MERCHANT_BODYGUARDS]
[USE_MISC_PROCESSED_WOOD_PRODUCTS]
[EQUIPMENT_IMPROVEMENTS]
[LEADER_TYPE:KING]
[SIEGER]
[MAYOR]
[COMMON_DOMESTIC_PACK]
[COMMON_DOMESTIC_PULL]
[COMMON_DOMESTIC_MOUNT]
[COMMON_DOMESTIC_PET]
[USE_ANY_PET_RACE]
[USE_MISC_PROCESSED_WOOD_PRODUCTS]
[RIVER_PRODUCTS][OCEAN_PRODUCTS]
[OUTDOOR_FARMING]
[PROGRESS_TRIGGER_POPULATION:1]
[PROGRESS_TRIGGER_PRODUCTION:1]
[PROGRESS_TRIGGER_TRADE:1]
[WILL_ACCEPT_TRIBUTE]
--------------------------
--------------------------
Add this to body_default below [OBJECT:BODY]
--------------------------
[BODY:ARACHNOBODY]
[BP:UB:upper body][UPPERBODY]
[BP:LB:abdomen][CON:UB][LOWERBODY]
[BP:HD:head][CON:UB][HEAD]
[BP:RUA1:first right upper arm][CON:UB][LIMB][RIGHT]
[BP:LUA1:first left upper arm][CON:UB][LIMB][LEFT]
[BP:RLA1:first right lower arm][CON:RUA1][LIMB][RIGHT]
[BP:LLA1:first left lower arm][CON:LUA1][LIMB][LEFT]
[BP:RH1:first right hand][CON:RLA1][GRASP][RIGHT]
[BP:LH1:first left hand][CON:LLA1][GRASP][LEFT]
[BP:RUA2:second right upper arm][CON:UB][LIMB][RIGHT]
[BP:LUA2:second left upper arm][CON:UB][LIMB][LEFT]
[BP:RLA2:second right lower arm][CON:RUA2][LIMB][RIGHT]
[BP:LLA2:second left lower arm][CON:LUA2][LIMB][LEFT]
[BP:RH2:second right hand][CON:RLA2][GRASP][RIGHT]
[BP:LH2:second left hand][CON:LLA2][GRASP][LEFT]
[BP:RA1:right first leg][CON:LB][LIMB][RIGHT]
[BP:LA1:left first leg][CON:LB][LIMB][LEFT]
[BP:RF1:right first claw][CON:RA1][STANCE][RIGHT]
[BP:LF1:left first claw][CON:LA1][STANCE][LEFT]
[BP:RA2:right second leg][CON:LB][LIMB][RIGHT]
[BP:LA2:left second leg][CON:LB][LIMB][LEFT]
[BP:RF2:right second claw][CON:RA2][STANCE][RIGHT]
[BP:LF2:left second claw][CON:LA2][STANCE][LEFT]
[BP:RA3:right third leg][CON:LB][LIMB][RIGHT]
[BP:LA3:left third leg][CON:LB][LIMB][LEFT]
[BP:RF3:right third claw][CON:RA3][STANCE][RIGHT]
[BP:LF3:left third claw][CON:LA3][STANCE][LEFT]
[BP:RA4:right fourth leg][CON:LB][LIMB][RIGHT]
[BP:LA4:left fourth leg][CON:LB][LIMB][LEFT]
[BP:RF4:right fourth claw][CON:RA4][STANCE][RIGHT]
[BP:LF4:left fourth claw][CON:LA4][STANCE][LEFT]
[BODY:8EYES]
[BP:REYE:first eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL][RIGHT]
[BP:REYE:second eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL][RIGHT]
[BP:REYE:third eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL]
[BP:REYE:fourth eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL]
[BP:REYE:fifth eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL]
[BP:REYE:sixth eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL]
[BP:REYE:seventh eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL][LEFT]
[BP:LEYE:eighth eye][CONTYPE:HEAD][SIGHT][EMBEDDED][SMALL][LEFT]
--------------------------
--------------------------
Add this to creature_standard below [OBJECT:CREATURE]
--------------------------
[CREATURE:ARACHNID]
[NAME:arachnid:arachnids:arachnid]
[TILE:1][COLOR:7:0:0]
[GENPOWER:3]
[MODVALUE:20]
[INTELLIGENT]
[CANOPENDOORS]
[AMPHIBIOUS]
[STOUT]
[TRANCES]
[SIZE:20]
[SPEED:100]
[EXTRACT:arachnid venom:7:0:0]
[EXTRACT_VALUE:500]
[EXTRACT_PARALYZE][EXTRACT_STUN_INTERMITTENT][NATURAL]
[EXTRACT_ANTIDOTE:arachnid antivenin:7:0:0:100]
[ATTACK:MAIN:BYTYPE:MOUTH:bite:bites:5:10:GORE][SPECIALATTACK_INJECT_EXTRACT:50:100][ATTACKFLAG_CANLATCH]
[ATTACK:SECOND:BYTYPE:GRASP:punch:punches:2:6:BLUDGEON][ATTACKFLAG_WITH]
[WEBIMMUNE][AMBUSHPREDATOR][PARALYZEIMMUNE]
[BLOODTYPE:W][CHITIN]
[BABY:1][CHILD:2][MULTIPLE_LITTER_RARE]
[GRASSTRAMPLE:10]
[CARNIVORE][BONECARN]
[EXTRAVISION][NOEXERT][NOFEAR][NOBLEED]
[PREFSTRING:terrifying presence]
[PREFSTRING:fearsome venom]
[BODY:ARACHNOBODY:8EYES:2EARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:THROAT:NECK:SPINE:BRAIN:MOUTH:5FINGERS]
[MAXAGE:250:300]
[FAT:2]
[DAMBLOCK:20]
[ALL_ACTIVE]
[CAVE_ADAPT]
[STANDARD_FLESH]
[HOMEOTHERM:10067]
[LAYERING:50]
[SWIMS_INNATE][SWIM_SPEED:1000]
[PERSONALITY:ACTIVITY_LEVEL:25:63:90]
[PERSONALITY:ADVENTUROUSNESS:10:55:100]
[PERSONALITY:ALTRUISM:20:70:100]
[PERSONALITY:ANXIETY:0:20:75]
[PERSONALITY:DEPRESSION:0:40:100]
[PERSONALITY:DUTIFULNESS:25:80:100]
[PERSONALITY:IMMODERATION:0:60:100]
[PERSONALITY:INTELLECTUAL_CURIOSITY:0:55:100]
[PERSONALITY:SELF_CONSCIOUSNESS:0:20:60]
[PERSONALITY:SELF_DISCIPLINE:25:50:100]
[PERSONALITY:VULNERABILITY:0:20:70]
--------------------------
By doing this, I think there is a 1:2 chance of playing either dwarves or arachnids. To always play the arachnids, remove the [CIV_CONTROLLABLE] tag from the dwarf entry in entity_default