I'm trying to mod in a new race, playing on Mephansteras' CivilizationForge mod. Here's what's in the entity_new and creature_standard files. Ignore the new weapons, they're tests.
[CREATURE:ZEONIAN]
[NAME:zeonian:zeonians:zeonian]
[TILE:'Z'][COLOR:4:0:0]
[GENPOWER:3]
[INTELLIGENT]
[CANOPENDOORS]
[BENIGN]
[PREFSTRING:ruthlessness]
[BODY:HUMANOID:2WINGS:2EYES:2EARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:HUMANOID_JOINTS:THROAT:NECK:SPINE:BRAIN:5FINGERS:5TOES:MOUTH]
[SIZE:7]
[MAXAGE:120:180]
[ATTACK:MAIN:BYTYPE:GRASP:punch:punches:1:2:BLUDGEON][ATTACKFLAG_WITH]
[ATTACK:SECOND:BYTYPE:MOUTH:bite:bites:1:1:GORE][ATTACKFLAG_CANLATCH]
[CHILD:12][BABY:1][MULTIPLE_LITTER_RARE]
[FAT:3]
[EQUIPS]
[DIURNAL]
[SPEECH_MALE:human_male.txt]
[STANDARD_FLESH]
[HOMEOTHERM:10067]
[LAYERING:10]
[SWIMS_LEARNED][SWIM_SPEED:2500]
[MUNDANE]
[ENTITY:WETLAND]
[CREATURE:ZEONIA]
[trANSLATION:ZEONIAN]
[DIGGER:ITEM_WEAPON_PICK]
[WEAPON:ITEM_WEAPON_WHIP]
[WEAPON:ITEM_WEAPON_AXE_BATTLE]
[WEAPON:ITEM_WEAPON_HAMMER_WAR]
[WEAPON:ITEM_WEAPON:ITEM_WEAPON_SCYTHE]
[WEAPON:ITEM_WEAPON_SPEAR]
[WEAPON:ITEM_WEAPON_MACE]
[WEAPON:ITEM_WEAPON_CROSSBOW_STRIKE]
[AMMO:ITEM_AMMO_BURN_BOLTS]
[AMMO:ITEM_AMMO_DASH_BOLTS]
[WEAPON:ITEM_WEAPON_PIKE]
[WEAPON:ITEM_WEAPON_HALBERD]
[WEAPON:ITEM_WEAPON_SWORD_2H]
[WEAPON:ITEM_WEAPON_SWORD_LONG]
[WEAPON:ITEM_WEAPON_MAUL]
[WEAPON:ITEM_WEAPON_AXE_GREAT]
[WEAPON:ITEM_WEAPON_FLAIL]
[WEAPON:ITEM_WEAPON_MORNINGSTAR]
[WEAPON:ITEM_WEAPON_SCIMITAR]
[ARMOR:ITEM_ARMOR_PLATEMAIL:UNCOMMON]
[ARMOR:ITEM_ARMOR_CHAINMAIL:UNCOMMON]
[ARMOR:ITEM_ARMOR_LAMELLAR_HEAVY:COMMON]
[ARMOR:ITEM_ARMOR_LAMELLAR:COMMON]
[ARMOR:ITEM_ARMOR_LEATHER:UNCOMMON]
[ARMOR:ITEM_ARMOR_COAT:COMMON]
[ARMOR:ITEM_ARMOR_SHIRT:COMMON]
[ARMOR:ITEM_ARMOR_CLOAK:COMMON]
[ARMOR:ITEM_ARMOR_TUNIC:COMMON]
[ARMOR:ITEM_ARMOR_TOGA:UNCOMMON]
[ARMOR:ITEM_ARMOR_CAPE:COMMON]
[ARMOR:ITEM_ARMOR_VEST:COMMON]
[ARMOR:ITEM_ARMOR_DRESS:COMMON]
[ARMOR:ITEM_ARMOR_ROBE:COMMON]
[HELM:ITEM_HELM_HELM:COMMON]
[HELM:ITEM_HELM_CAP:COMMON]
[HELM:ITEM_HELM_HOOD:COMMON]
[HELM:ITEM_HELM_TURBAN:UNCOMMON]
[HELM:ITEM_HELM_MASK:UNCOMMON]
[HELM:ITEM_HELM_VEIL_HEAD:UNCOMMON]
[HELM:ITEM_HELM_VEIL_FACE:UNCOMMON]
[HELM:ITEM_HELM_SCARF_HEAD:UNCOMMON]
[GLOVES:ITEM_GLOVES_GAUNTLETS:COMMON]
[GLOVES:ITEM_GLOVES_GLOVES:COMMON]
[GLOVES:ITEM_GLOVES_MITTENS:UNCOMMON]
[SHOES:ITEM_SHOES_SHOES:COMMON]
[SHOES:ITEM_SHOES_BOOTS:COMMON]
[SHOES:ITEM_SHOES_BOOTS_LOW:COMMON]
[SHOES:ITEM_SHOES_SANDAL:UNCOMMON]
[SHOES:ITEM_SHOES_CHAUSSE:UNCOMMON]
[SHOES:ITEM_SHOES_SOCKS:COMMON]
[PANTS:ITEM_PANTS_PANTS:COMMON]
[PANTS:ITEM_PANTS_GREAVES:COMMON]
[PANTS:ITEM_PANTS_LEGGINGS:COMMON]
[PANTS:ITEM_PANTS_LOINCLOTH:UNCOMMON]
[PANTS:ITEM_PANTS_THONG:UNCOMMON]
[PANTS:ITEM_PANTS_SKIRT:COMMON]
[PANTS:ITEM_PANTS_SKIRT_SHORT:COMMON]
[PANTS:ITEM_PANTS_SKIRT_LONG:COMMON]
[PANTS:ITEM_PANTS_BRAIES:UNCOMMON]
[SHIELD:ITEM_SHIELD_SHIELD]
[SHIELD:ITEM_SHIELD_BUCKLER]
[SIEGEAMMO:ITEM_SIEGEAMMO_BALLISTA]
[TOY:ITEM_TOY_PUZZLEBOX]
[TOY:ITEM_TOY_BOAT]
[TOY:ITEM_TOY_HAMMER]
[TOY:ITEM_TOY_AXE]
[INSTRUMENT:ITEM_INSTRUMENT_FLUTE]
[INSTRUMENT:ITEM_INSTRUMENT_TRUMPET]
[INSTRUMENT:ITEM_INSTRUMENT_HARP]
[INSTRUMENT:ITEM_INSTRUMENT_PICCOLO]
[CLOTHING]
[CURRENCY:COPPER:1]
[CURRENCY:SILVER:5]
[CURRENCY:GOLD:15]
[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]
[CULL_SYMBOL:ALL:SUBORDINATE]
[CULL_SYMBOL:ALL:EVIL]
[CULL_SYMBOL:ALL:UNTOWARD]
[CULL_SYMBOL:ALL:NEGATIVE]
[CULL_SYMBOL:ALL:UGLY]
[CULL_SYMBOL:ALL:NEGATOR]
[SELECT_SYMBOL:CIV:NAME_ENTITY_KINGDOM]
[SELECT_SYMBOL:SITE:NAME_ENTITY_TOWN_FOUNDER]
[RIVER_PRODUCTS]
[OCEAN_PRODUCTS]
[OUTDOOR_FARMING]
[USE_ANIMAL_PRODUCTS]
[COMMON_DOMESTIC_PACK]
[COMMON_DOMESTIC_PULL]
[COMMON_DOMESTIC_MOUNT]
[COMMON_DOMESTIC_PET]
[USE_MISC_PROCESSED_WOOD_PRODUCTS]
[EQUIPMENT_IMPROVEMENTS]
[SPHERE_ALIGNMENT:WAR:512]
[ART_FACET_MODIFIER:FANCIFUL:640]
[ART_FACET_MODIFIER:OWN_RACE:512]
[ADVENTURE_TIER:1]
[FRIENDLY_COLOR:7:0:1]
[UNDEAD_CANDIDATE]
[DEFAULT_SITE_TYPE:CITY]
[liKES_SITE:CITY]
[TOLERATES_SITE:CITY]
[TOLERATES_SITE:TREE_CITY]
[TOLERATES_SITE:CAVE_DETAILED]
[CAN_HAVE_MILITARY_SITE_LEADER]
[START_BIOME:ANY_WETLAND]
[START_BIOME:ANY_FOREST]
[START_BIOME:ANY_DESERT]
[BIOME_SUPPORT:ANY_WETLAND:1]
[BIOME_SUPPORT:ANY_DESERT:1]
[BIOME_SUPPORT:ANY_FOREST:2]
[BIOME_SUPPORT:ANY_OCEAN:3]
[BIOME_SUPPORT:ANY_LAKE:3]
[BIOME_SUPPORT:ANY_GRASSLAND:3]
[BIOME_SUPPORT:ANY_SAVANNA:2]
[BIOME_SUPPORT:ANY_SHRUBLAND:2]
[BIOME_SUPPORT:ANY_RIVER:1]
[DIPLOMAT]
[MERCHANT_NOBILITY]
[DIPLOMAT_BODYGUARDS]
[MERCHANT_BODYGUARDS]
[PROGRESS_TRIGGER_TRADE:1]
[ACTIVE_SEASON:SPRING]
[ACTIVE_SEASON:SUMMER]
[ACTIVE_SEASON:AUTUMN]
[ACTIVE_SEASON:WINTER]
[SIEGER]
[MAX_STARTING_CIV_NUMBER:300]
[START_GROUP_NUMBER:10]
[MAX_POP_NUMBER:10500]
[MAX_SITE_POP_NUMBER:130]
[RELIGION:PANTHEON]
[RELIGION_SPHERE:LIGHT]
[WANDERER]
[MAYOR]
[BEAST_HUNTER]
[SCOUT]
[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]
[WORLD_CONSTRUCTION:WALL]
[WORLD_CONSTRUCTION:BRIDGE]
[WORLD_CONSTRUCTION:ROAD]
[INDIV_CONTROLLABLE]
[CIV_CONTROLLABLE]
[ETHIC:KILL_ENTITY_MEMBER:JUSTIFIED_IF_GOOD_REASON]
[ETHIC:KILL_NEUTRAL:JUSTIFIED_IF_NO_REPERCUSSIONS]
[ETHIC:KILL_ENEMY:ACCEPTABLE]
[ETHIC:KILL_ANIMAL:ACCEPTABLE]
[ETHIC:KILL_PLANT:ACCEPTABLE]
[ETHIC:TORTURE_AS_EXAMPLE:ACCEPTABLE]
[ETHIC:TORTURE_FOR_INFORMATION:ACCEPTABLE]
[ETHIC:TORTURE_FOR_FUN:SHUN]
[ETHIC:TORTURE_ANIMALS:SHUN]
[ETHIC:TREASON:PUNISH_CAPITAL]
[ETHIC:OATH_BREAKING:SHUN]
[ETHIC:LYING:PERSONAL_MATTER]
[ETHIC:VANDALISM:PUNISH_SERIOUS]
[ETHIC:TRESPASSING:PUNISH_SERIOUS]
[ETHIC:THEFT:PUNISH_SERIOUS]
[ETHIC:ASSAULT:PUNISH_SERIOUS]
[ETHIC:SLAVERY:ACCEPTABLE]
[ETHIC:EAT_SAPIENT_OTHER:UNTHINKABLE]
[ETHIC:EAT_SAPIENT_KILL:UNTHINKABLE]
[ETHIC:MAKE_TROPHY_SAME_RACE:ACCEPTABLE]
[ETHIC:MAKE_TROPHY_SAPIENT:ACCEPTABLE]
[ETHIC:MAKE_TROPHY_ANIMAL:ACCEPTABLE]
[WILL_ACCEPT_TRIBUTE]
If I can get some help fixing this, I'll try to tweak the race so we could get some stronger sieges.