Ok, I made a "zombie" that attacks once in a while. It comes in any biome except mountain, tundra, and glacier. Yeah, I put [BIOME:NOT_FREEZING]. (Zombies would freeze out there in real life!)
Be careful, there are shamblers, runners, fatties, and alphas. Shamblers are a little slow, but they'll kick down the door and eat your dwarves. Runners are fast, but are weak and small. Fatties are bigger than shamblers and explode in a toxic, gory mess, but are rare. Alpha's are very rare, but are strong and faster than shamblers.
Be careful! The disease will spread among your dwarves! (Not really. I used venom blood and biting to simulate. It will spread though)
I present, the undead!
[CREATURE:UNDEAD]
[DESCRIPTION:A terrible beast with a hivemind.]
[NAME:undead:undead:undead]
[CREATURE_TILE:'Z'][COLOR:2:0:0]
[LARGE_ROAMING]
[FREQUENCY:100]
[FEATURE_ATTACK_GROUP]
[BIOME:NOT_FREEZING]
[POPULATION_NUMBER:1000:100000]
[CLUSTER_NUMBER:20:30]
[PREFSTRING:horrific nature]
[CANOPENDOORS]
[LARGE_PREDATOR]
[ALL_ACTIVE]
[UBIQUITOUS]
[PARALYZEIMMUNE]
[NO_SLEEP]
[NO_BREATH]
[NO_DRINK]
[NOEMOTION]
[NO_PAIN]
[NOEXERT]
[NOFEAR]
[CARNIVORE]
[LIKES_FIGHTING]
[SOUND]
[PET_EXOTIC]
[CAN_LEARN]
[HOMEOTHERM:10040]
[MAXAGE:5:8]
[USE_MATERIAL_TEMPLATE:POISON:CREATURE_EXTRACT_TEMPLATE]
[STATE_NAME:ALL_SOLID:frozen Solanum]
[STATE_ADJ:ALL_SOLID:frozen Solanum]
[STATE_NAME:LIQUID:Solanum]
[STATE_ADJ:LIQUID:Solanum]
[STATE_NAME:GAS:boiling Solanum]
[STATE_ADJ:GAS:boiling Solanum]
[PREFIX:NONE]
[ENTERS_BLOOD]
[SYNDROME]
[SYN_NAME:Solanum]
[SYN_AFFECTED_CLASS:GENERAL_POISON]
[SYN_CONTACT]
[SYN_INJECTED]
[CE_NECROSIS:SEV:100:PROB:100:START:50:PEAK:100]
[CE_NAUSEA:SEV:10:PROB:70:START:5:PEAK:100:END:200]
[CE_UNCONSCIOUSNESS:SEV:100:PROB:10:START:120:PEAK:200]
[CASTE:SHAMBLER]
[CASTE_NAME:shambler:shamblers:shambler]
[POP_RATIO:10000]
[CASTE:RUNNER]
[CASTE_NAME:runner:runners:runner]
[POP_RATIO:1000]
[CASTE:FATTY]
[FEMALE]
[CASTE_NAME:fatty:fatties:fatty]
[POP_RATIO:100]
[CASTE:ALPHA]
[MALE]
[CASTE_NAME:alpha:alphas:alpha]
[POP_RATIO:10]
[SELECT_CASTE:SHAMBLER]
[SPEED:850]
[BUILDINGDESTROYER:2]
[SELECT_ADDITIONAL_CASTE:RUNNER]
[SPEED:1100]
[BUILDINGDESTROYER:1]
[HAS_NERVES]
[SELECT_ADDITIONAL_CASTE:ALPHA]
[SPEED:950]
[BUILDINGDESTROYER:2]
[SELECT_CASTE:FATTY]
[SPEED:900]
[BUILDINGDESTROYER:2]
[MATERIAL_BREATH_ATTACK:LOCAL_CREATURE_MAT:SPITTER_SPIT:UNDIRECTED_DUST]
[SELECT_CASTE:ALL]
[BODY:HUMANOID:2EYES:2EARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:HUMANOID_JOINTS:THROAT:NECK:SPINE:BRAIN:SKULL:5FINGERS:5TOES:MOUTH:FACIAL_FEATURES:TEETH:RIBCAGE]
[BODY_DETAIL_PLAN:STANDARD_MATERIALS]
[BODY_DETAIL_PLAN:STANDARD_TISSUES]
[BODY_DETAIL_PLAN:VERTEBRATE_TISSUE_LAYERS:SKIN:FAT:MUSCLE:BONE:CARTILAGE]
[BODY_DETAIL_PLAN:HEAD_HAIR_TISSUE_LAYERS]
[USE_TISSUE_TEMPLATE:EYEBROW:EYEBROW_TEMPLATE]
[TISSUE_LAYER:BY_CATEGORY:HEAD:EYEBROW:ABOVE:BY_CATEGORY:EYE]
[USE_TISSUE_TEMPLATE:EYELASH:EYELASH_TEMPLATE]
[TISSUE_LAYER:BY_CATEGORY:EYELID:EYELASH:FRONT]
[USE_MATERIAL_TEMPLATE:NAIL:NAIL_TEMPLATE]
[USE_TISSUE_TEMPLATE:NAIL:NAIL_TEMPLATE]
[TISSUE_LAYER:BY_CATEGORY:FINGER:NAIL:FRONT]
[TISSUE_LAYER:BY_CATEGORY:TOE:NAIL:FRONT]
[SELECT_TISSUE_LAYER:HEART:BY_CATEGORY:HEART]
[PLUS_TISSUE_LAYER:SKIN:BY_CATEGORY:THROAT]
[TL_MAJOR_ARTERIES]
[BODY_DETAIL_PLAN:FACIAL_HAIR_TISSUES]
[BODY_DETAIL_PLAN:STANDARD_HEAD_POSITIONS]
[BODY_DETAIL_PLAN:HUMANOID_HEAD_POSITIONS]
[BODY_DETAIL_PLAN:HUMANOID_RIBCAGE_POSITIONS]
[BODY_DETAIL_PLAN:HUMANOID_RELSIZES]
[USE_MATERIAL_TEMPLATE:SINEW:SINEW_TEMPLATE]
[TENDONS:LOCAL_CREATURE_MAT:SINEW:200]
[LIGAMENTS:LOCAL_CREATURE_MAT:SINEW:200]
[USE_MATERIAL_TEMPLATE:LOCAL_CREATURE_MAT:POISON]
[BLOOD:LOCAL_CREATURE_MAT:POISON:LIQUID]
[CREATURE_CLASS:GENERAL_POISON]
[USE_MATERIAL_TEMPLATE:PUS:PUS_TEMPLATE]
[PUS:LOCAL_CREATURE_MAT:PUS:LIQUID]
[BODY_APPEARANCE_MODIFIER:HEIGHT:75:95:98:100:102:105:125]
[APP_MOD_IMPORTANCE:500]
[BODY_APPEARANCE_MODIFIER:BROADNESS:75:95:98:100:102:105:125]
[APP_MOD_IMPORTANCE:500]
[SET_BP_GROUP:BY_CATEGORY:EYE]
[BP_APPEARANCE_MODIFIER:CLOSE_SET:0:70:90:100:110:130:200]
[APP_MOD_NOUN:eyes:PLURAL]
[BP_APPEARANCE_MODIFIER:DEEP_SET:0:70:90:100:110:130:200]
[APP_MOD_NOUN:eyes:PLURAL]
[BP_APPEARANCE_MODIFIER:ROUND_VS_NARROW:0:70:90:100:110:130:200]
[APP_MOD_NOUN:eyes:PLURAL]
[BP_APPEARANCE_MODIFIER:LARGE_IRIS:25:70:90:100:110:130:200]
[APP_MOD_NOUN:eyes:PLURAL]
[APP_MOD_DESC_RANGE:30:60:90:110:150:190]
[SET_BP_GROUP:BY_CATEGORY:LIP]
[BP_APPEARANCE_MODIFIER:THICKNESS:50:70:90:100:110:130:200]
[APP_MOD_NOUN:lips:PLURAL]
[APP_MOD_DESC_RANGE:55:70:90:110:150:190]
[SET_BP_GROUP:BY_CATEGORY:NOSE]
[BP_APPEARANCE_MODIFIER:BROADNESS:25:70:90:100:110:130:200]
[APP_MOD_DESC_RANGE:30:60:90:110:150:190]
[BP_APPEARANCE_MODIFIER:LENGTH:25:70:90:100:110:130:200]
[APP_MOD_DESC_RANGE:30:60:90:110:150:190]
[BP_APPEARANCE_MODIFIER:UPTURNED:0:70:90:100:110:130:200]
[BP_APPEARANCE_MODIFIER:CONVEX:0:70:90:100:110:130:200]
[APP_MOD_NOUN:nose bridge:SINGULAR]
[SET_BP_GROUP:BY_CATEGORY:EAR]
[BP_APPEARANCE_MODIFIER:SPLAYED_OUT:0:70:90:100:110:130:200]
[APP_MOD_NOUN:ears:PLURAL]
[BP_APPEARANCE_MODIFIER:HANGING_LOBES:0:70:90:100:110:130:200]
[APP_MOD_NOUN:ears:PLURAL]
[BP_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[APP_MOD_IMPORTANCE:700]
[APP_MOD_NOUN:ears:PLURAL]
[APP_MOD_DESC_RANGE:91:94:98:102:106:109]
[BP_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[APP_MOD_IMPORTANCE:700]
[APP_MOD_NOUN:ears:PLURAL]
[APP_MOD_DESC_RANGE:91:94:98:102:106:109]
[SET_BP_GROUP:BY_CATEGORY:TOOTH]
[BP_APPEARANCE_MODIFIER:GAPS:0:70:90:100:110:130:200]
[APP_MOD_NOUN:teeth:PLURAL]
[SET_BP_GROUP:BY_CATEGORY:SKULL]
[BP_APPEARANCE_MODIFIER:HIGH_CHEEKBONES:0:70:90:100:110:130:200]
[BP_APPEARANCE_MODIFIER:BROAD_CHIN:0:70:90:100:110:130:200]
[BP_APPEARANCE_MODIFIER:JUTTING_CHIN:0:70:90:100:110:130:200]
[BP_APPEARANCE_MODIFIER:SQUARE_CHIN:0:70:90:100:110:130:200]
[SET_BP_GROUP:BY_CATEGORY:THROAT]
[BP_APPEARANCE_MODIFIER:DEEP_VOICE:0:70:90:100:110:130:200]
[BP_APPEARANCE_MODIFIER:RASPY_VOICE:0:70:90:100:110:130:200]
[SET_BP_GROUP:BY_CATEGORY:HEAD]
[BP_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[APP_MOD_IMPORTANCE:700]
[APP_MOD_DESC_RANGE:91:94:98:102:106:109]
[BP_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[APP_MOD_IMPORTANCE:700]
[APP_MOD_DESC_RANGE:91:94:98:102:106:109]
[MAXAGE:60:120]
[ATTACK:PUNCH:BODYPART:BY_TYPE:GRASP]
[ATTACK_SKILL:GRASP_STRIKE]
[ATTACK_VERB:punch:punches]
[ATTACK_CONTACT_PERC:100]
[ATTACK_FLAG_WITH]
[ATTACK_PRIORITY:SECOND]
[ATTACK:SCRATCH:CHILD_TISSUE_LAYER_GROUP:BY_TYPE:GRASP:BY_CATEGORY:FINGER:NAIL]
[ATTACK_SKILL:GRASP_STRIKE]
[ATTACK_VERB:scratch:scratches]
[ATTACK_CONTACT_PERC:100]
[ATTACK_PENETRATION_PERC:100]
[ATTACK_FLAG_EDGE]
[ATTACK_PRIORITY:SECOND]
[SPECIALATTACK_INJECT_EXTRACT:LOCAL_CREATURE_MAT:VENOM:LIQUID:100:100]
[ATTACK:BITE:CHILD_BODYPART_GROUP:BY_CATEGORY:HEAD:BY_CATEGORY:TOOTH]
[ATTACK_SKILL:BITE]
[ATTACK_VERB:bite:bites]
[ATTACK_CONTACT_PERC:100]
[ATTACK_PENETRATION_PERC:100]
[ATTACK_FLAG_EDGE]
[ATTACK_PRIORITY:MAIN]
[ATTACK_FLAG_CANLATCH]
[SPECIALATTACK_INJECT_EXTRACT:LOCAL_CREATURE_MAT:VENOM:LIQUID:100:100]
[SELECT_CASTE:SHAMBLER]
[BODY_SIZE:0:0:4000]
[BODY_SIZE:1:168:20000]
[BODY_SIZE:2:0:80000]
[SELECT_CASTE:RUNNER]
[BODY_SIZE:0:0:3000]
[BODY_SIZE:1:168:20000]
[BODY_SIZE:2:0:50000]
[SELECT_CASTE:ALPHA]
[BODY_SIZE:0:0:5000]
[BODY_SIZE:1:168:25000]
[BODY_SIZE:2:0:200000]
[SELECT_CASTE:FATTY]
[BODY_SIZE:0:0:1000]
[BODY_SIZE:1:168:5000]
[BODY_SIZE:2:0:90000]