Would the undead count? As it stands now necromancers, vamps and Were-people could form theyr own more active "factions" in the future. Not a civ perse although a determined Vamp might turn an entire city or so.
Animal-people being more inteeligent? Sure, that has some "natives" vibe going while the elves are more like a sect of eco-facists.
Demons might get theyr own sites in the upcomming release.
Apart from that i am against merfolk right now. As dwarf you dont get to visit them, except you mod the game with a secret that gives you waterbreathing abilty. Another problem with merfolk is that you dont have any conflict. As long they stay in there underwater cities they dont have to fear invasion and they cant attack landdwellers.
More civilized dragons would be nice but more the sake of theyr intelligence and ability to learn. ... i would like to see a Dragon necromancer XD
Hobbits would be essentialy hilldwarfs.
I like the idea of a lizard like people, ya know? They would have good weapons and a poisonous bite they could use and of course they would walk on two legs like a humanoid. And they would live in water mostly so maybe they would only go x amount of tiles on the world map from the water? And maybe they'll start off friendly if you wanted them to or wanting to annihilate your fort if they're not. And if you're at war with them maybe they'll send baby snatchers and thieves to attack you? And maybe they'll have some exotic creatures to trade that are native to the ocean? Like I dunno.. Mermaids? Sharks maybe?
Okay now I want this to be a thing, someone teach me to make a new civ! D:
The http://dwarffortresswiki.org/index.php/DF2012:Modding_guide (http://dwarffortresswiki.org/index.php/DF2012:Modding_guide) should be a good start I think, and here's a quick version of the civ you wanted, it's a copy of the humans, but with the reptile men instead.
[ENTITY:NUGET102]
[INDIV_CONTROLLABLE]
[CREATURE:REPTILE_MAN]
[TRANSLATION:HUMAN]
[DIGGER:ITEM_WEAPON_PICK]
[WEAPON:ITEM_WEAPON_WHIP]
[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]
[WEAPON:ITEM_WEAPON_BOW]
[AMMO:ITEM_AMMO_ARROWS]
[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]
[WEAPON:ITEM_WEAPON_AXE_TRAINING]
[WEAPON:ITEM_WEAPON_SWORD_SHORT_TRAINING]
[WEAPON:ITEM_WEAPON_SPEAR_TRAINING]
[ARMOR:ITEM_ARMOR_BREASTPLATE:COMMON]
[ARMOR:ITEM_ARMOR_MAIL_SHIRT:COMMON]
[ARMOR:ITEM_ARMOR_LEATHER:COMMON]
[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:RARE]
[HELM:ITEM_HELM_VEIL_HEAD:UNCOMMON]
[HELM:ITEM_HELM_VEIL_FACE:RARE]
[HELM:ITEM_HELM_SCARF_HEAD:UNCOMMON]
[GLOVES:ITEM_GLOVES_GAUNTLETS:COMMON]
[GLOVES:ITEM_GLOVES_GLOVES:COMMON]
[GLOVES:ITEM_GLOVES_MITTENS:COMMON]
[SHOES:ITEM_SHOES_SHOES:COMMON]
[SHOES:ITEM_SHOES_BOOTS:COMMON]
[SHOES:ITEM_SHOES_BOOTS_LOW:COMMON]
[SHOES:ITEM_SHOES_SANDAL:COMMON]
[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:COMMON]
[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]
[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_HAMMER]
[TOY:ITEM_TOY_AXE]
[INSTRUMENT:ITEM_INSTRUMENT_FLUTE]
[INSTRUMENT:ITEM_INSTRUMENT_TRUMPET]
[INSTRUMENT:ITEM_INSTRUMENT_HARP]
[INSTRUMENT:ITEM_INSTRUMENT_DRUM]
[INSTRUMENT:ITEM_INSTRUMENT_PICCOLO]
[TOOL:ITEM_TOOL_CAULDRON]
[TOOL:ITEM_TOOL_LADLE]
[TOOL:ITEM_TOOL_BOWL]
[TOOL:ITEM_TOOL_MORTAR]
[TOOL:ITEM_TOOL_PESTLE]
[TOOL:ITEM_TOOL_KNIFE_CARVING]
[TOOL:ITEM_TOOL_KNIFE_BONING]
[TOOL:ITEM_TOOL_KNIFE_SLICING]
[TOOL:ITEM_TOOL_KNIFE_MEAT_CLEAVER]
[TOOL:ITEM_TOOL_FORK_CARVING]
[TOOL:ITEM_TOOL_NEST_BOX]
[TOOL:ITEM_TOOL_JUG]
[TOOL:ITEM_TOOL_LARGE_POT]
[TOOL:ITEM_TOOL_HIVE]
[TOOL:ITEM_TOOL_POUCH]
[TOOL:ITEM_TOOL_WHEELBARROW]
[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: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]
[METAL_PREF]
[GEM_PREF]
[STONE_PREF]
[OUTDOOR_WOOD]
[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:320]
[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]
[START_BIOME:ANY_GRASSLAND]
[START_BIOME:ANY_SAVANNA]
[START_BIOME:ANY_SHRUBLAND]
[BIOME_SUPPORT:ANY_WETLAND:1]
[BIOME_SUPPORT:ANY_DESERT:1]
[BIOME_SUPPORT:ANY_FOREST:2]
[BIOME_SUPPORT:ANY_OCEAN:12]
[BIOME_SUPPORT:ANY_LAKE:3]
[BIOME_SUPPORT:ANY_GRASSLAND:3]
[BIOME_SUPPORT:ANY_SAVANNA:2]
[BIOME_SUPPORT:ANY_SHRUBLAND:2]
[BIOME_SUPPORT:ANY_RIVER:4]
[MERCHANT_NOBILITY]
[DIPLOMAT_BODYGUARDS]
[MERCHANT_BODYGUARDS]
[PROGRESS_TRIGGER_TRADE:1]
[PROGRESS_TRIGGER_POP_SIEGE:3]
[PROGRESS_TRIGGER_PROD_SIEGE:0]
[PROGRESS_TRIGGER_TRADE_SIEGE:0]
[ACTIVE_SEASON:SUMMER]
[SIEGER]
[MAX_STARTING_CIV_NUMBER:100]
[MAX_POP_NUMBER:10000]
[MAX_SITE_POP_NUMBER:60]
[RELIGION:PANTHEON]
[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:FISHERMAN]
[PERMITTED_JOB:FISH_DISSECTOR]
[PERMITTED_JOB:FISH_CLEANER]
[PERMITTED_JOB:CHEESE_MAKER]
[PERMITTED_JOB:MILKER]
[PERMITTED_JOB:SHEARER]
[PERMITTED_JOB:SPINNER]
[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]
[PERMITTED_JOB:DIAGNOSER]
[PERMITTED_JOB:BONE_SETTER]
[PERMITTED_JOB:SUTURER]
[PERMITTED_JOB:SURGEON]
[PERMITTED_JOB:GLAZER]
[PERMITTED_JOB:POTTER]
[PERMITTED_JOB:PRESSER]
[PERMITTED_JOB:BEEKEEPER]
[PERMITTED_JOB:WAX_WORKER]
[PERMITTED_BUILDING:SOAP_MAKER]
[PERMITTED_BUILDING:SCREW_PRESS]
[PERMITTED_REACTION:TAN_A_HIDE]
[PERMITTED_REACTION:RENDER_FAT]
[PERMITTED_REACTION:MAKE_SOAP_FROM_TALLOW]
[PERMITTED_REACTION:MAKE_SOAP_FROM_OIL]
[PERMITTED_REACTION:MILL_SEEDS_NUTS_TO_PASTE]
[PERMITTED_REACTION:MAKE_CLAY_JUG]
[PERMITTED_REACTION:MAKE_CLAY_BRICKS]
[PERMITTED_REACTION:MAKE_CLAY_STATUE]
[PERMITTED_REACTION:MAKE_LARGE_CLAY_POT]
[PERMITTED_REACTION:MAKE_CLAY_CRAFTS]
[PERMITTED_REACTION:GLAZE_JUG]
[PERMITTED_REACTION:GLAZE_STATUE]
[PERMITTED_REACTION:GLAZE_LARGE_POT]
[PERMITTED_REACTION:GLAZE_CRAFT]
[PERMITTED_REACTION:PRESS_OIL]
[PERMITTED_REACTION:MAKE_CLAY_HIVE]
[PERMITTED_REACTION:PRESS_HONEYCOMB]
[PERMITTED_REACTION:MAKE_WAX_CRAFTS]
[PERMITTED_REACTION:MAKE_MEAD]
[PERMITTED_REACTION:BRASS_MAKING]
[PERMITTED_REACTION:BRASS_MAKING2]
[PERMITTED_REACTION:BRONZE_MAKING]
[PERMITTED_REACTION:BRONZE_MAKING2]
[PERMITTED_REACTION:ELECTRUM_MAKING]
[PERMITTED_REACTION:ELECTRUM_MAKING2]
[PERMITTED_REACTION:BILLON_MAKING]
[PERMITTED_REACTION:BILLON_MAKING2]
[PERMITTED_REACTION:PEWTER_FINE_MAKING]
[PERMITTED_REACTION:PEWTER_FINE_MAKING2]
[PERMITTED_REACTION:PEWTER_TRIFLE_MAKING]
[PERMITTED_REACTION:PEWTER_TRIFLE_MAKING2]
[PERMITTED_REACTION:PEWTER_LAY_MAKING]
[PERMITTED_REACTION:BLACK_BRONZE_MAKING]
[PERMITTED_REACTION:STERLING_SILVER_MAKING]
[PERMITTED_REACTION:ROSE_GOLD_MAKING]
[WORLD_CONSTRUCTION:WALL]
[WORLD_CONSTRUCTION:BRIDGE]
[WORLD_CONSTRUCTION:ROAD]
[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:APPALLING]
[ETHIC:TORTURE_ANIMALS:SHUN]
[ETHIC:TREASON:PUNISH_CAPITAL]
[ETHIC:OATH_BREAKING:PUNISH_CAPITAL]
[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]
[VARIABLE_POSITIONS:ALL]
[BUILDS_OUTDOOR_FORTIFICATIONS]
[BUILDS_OUTDOOR_TOMBS]
[BANDITRY:10]
[STONE_SHAPE:OVAL_CABOCHON]
[STONE_SHAPE:ROUND_CABOCHON]
[STONE_SHAPE:CUSHION_CABOCHON]
[STONE_SHAPE:RECTANGULAR_CABOCHON]
[GEM_SHAPE:OVAL_CABOCHON]
[GEM_SHAPE:ROUND_CABOCHON]
[GEM_SHAPE:CUSHION_CABOCHON]
[GEM_SHAPE:RECTANGULAR_CABOCHON]
[GEM_SHAPE:POINT_CUT_GEM]
[GEM_SHAPE:TABLE_CUT_GEM]
[GEM_SHAPE:SINGLE_CUT_GEM]
[GEM_SHAPE:ROSE_CUT_GEM]
[GEM_SHAPE:BRIOLETTE_CUT_GEM]