This page lists all monster entities and their associated model files. This is intended to be a reference for scripted_sequence where animations are stored in the model files.

There's also the Body and Skin columns which denotes how entities handle such keyvalues if given by mappers.

Towards the end of the page is a little section for prop model placements.

Monsters

Legend

See the notes at the bottom of this page for more info.

Table

Entity	Model	Body	Skin	Remarks
monster_alien_babyvoltigore (Half-Life: Opposing Force)	models/baby_voltigore.mdl	❔	❔
monster_alien_controller	models/controller.mdl	❔	❔
monster_alien_grunt	models/agrunt.mdl	❔	❔
monster_alien_slave	models/islave.mdl	❔	❌	Skin used for attack charge state, but unrealized in stock model.
monster_alien_slave_dead (Half-Life: Opposing Force)	models/islave.mdl	❔	❔
monster_alien_voltigore (Half-Life: Opposing Force)	models/voltigore.mdl	❔	❔
monster_apache	models/apache.mdl	❔	❔
monster_assassin_repel (Half-Life: Opposing Force)	models/massn.mdl	❔	❔
monster_babycrab	models/baby_headcrab.mdl	❔	❔
monster_barnacle	models/barnacle.mdl	❔	❔
monster_barney	models/barney.mdl	❌	✔️	Uses different body values for weapon state: hand carry, holstered, none.
monster_barney_dead	models/barney.mdl	❔	✔️
monster_bigmomma	models/big_mom.mdl	❔	❔
monster_blkop_apache (Half-Life: Opposing Force)	models/blkop_apache.mdl	❔	❔
monster_blkop_osprey (Half-Life: Opposing Force)	models/blkop_osprey.mdl	❔	❔
monster_bloater	models/floater.mdl	❔	❔
monster_bullchicken	models/bullsquid.mdl	✔️	❌	Skin used for blinking.
monster_cleansuit_scientist (Half-Life: Opposing Force)	models/cleansuit_scientist.mdl	📃	❌	Skin tied to body.
monster_cleansuit_scientist_dead (Half-Life: Opposing Force)	models/cleansuit_scientist.mdl	📃	❌	Skin tied to body.
monster_cockroach	models/roach.mdl	❔	❔
monster_drillsergeant (Half-Life: Opposing Force)	models/drill.mdl	❔	❔
monster_flyer_flock	models/aflock.mdl	❔	❔
monster_furniture	specified by mapper	✔️	✔️	Requires scripted_sequence to set sequence.
monster_gargantua	models/garg.mdl	❔	❔
monster_geneworm (Half-Life: Opposing Force)	models/geneworm.mdl	❔	❔
monster_generic	specified by mapper	✔️	✔️
monster_gman	models/gman.mdl	❔	❔
monster_gonome (Half-Life: Opposing Force)	models/gonome.mdl	❔	❔
monster_gonome_dead (Half-Life: Opposing Force)	models/gonome.mdl	❔	❔
monster_grunt_ally_repel (Half-Life: Opposing Force)	models/hgrunt_opfor.mdl	❌	❌	Body uses head+weapons combo. Skin always 0.
monster_grunt_repel	models/hgrunt.mdl	❌	❌	Spawns a grunt programmatically.
monster_handgrenade	models/w_grenade.mdl	❔	❔
monster_headcrab	models/headcrab.mdl	❔	❔
monster_hevsuit_dead	models/player.mdl	❌	❔
monster_hgrunt_dead	models/hgrunt.mdl	📃	❌	Always light skin (skin 0).
monster_houndeye	models/houndeye.mdl	✔️	❌	Skin used for blinking.
monster_houndeye_dead (Half-Life: Opposing Force)	models/houndeye.mdl	❔	❔
monster_human_assassin	models/hassassin.mdl	❔	❔
monster_human_grunt	models/hgrunt.mdl	❌	❌	See page.
monster_human_grunt_ally (Half-Life: Opposing Force)	models/hgrunt_opfor.mdl	❌	❌	Body uses head+weapons combo. Skin always 0.
monster_human_grunt_ally_dead (Half-Life: Opposing Force)	models/hgrunt_opfor.mdl	❌	❌	Body uses head+weapons combo. Skin always 0.
monster_human_medic_ally (Half-Life: Opposing Force)	models/hgrunt_medic.mdl	❌	❌	Body uses head+weapons combo. Skin always 0.
monster_human_torch_ally (Half-Life: Opposing Force)	models/hgrunt_torch.mdl	❌	❌	Body uses weapons. Skin always 0.
monster_ichthyosaur	models/icky.mdl	✔️	❌	Skin used for blinking.
monster_leech	models/leech.mdl	❔	❔
monster_male_assassin (Half-Life: Opposing Force)	models/massn.mdl	❔	❔
monster_miniturret	models/miniturret.mdl	❔	❔
monster_nihilanth	models/nihilanth.mdl	❔	❔
monster_op4loader (Half-Life: Opposing Force)	models/loader.mdl	❔	❔
monster_osprey	models/osprey.mdl	❔	❔
monster_otis (Half-Life: Opposing Force)	models/otis.mdl	❌	✔️	Body uses head+bodystate combo.
monster_otis_dead (Half-Life: Opposing Force)	models/otis.mdl	❔	❔
monster_pitdrone (Half-Life: Opposing Force)	models/pit_drone.mdl	❔	❔
monster_pitworm (Half-Life: Opposing Force)	models/pit_worm_up.mdl	❔	❔
monster_pitworm_up (Half-Life: Opposing Force)	models/pit_worm_up.mdl	❔	❔
monster_rat	models/bigrat.mdl	❔	❔
monster_recruit (Half-Life: Opposing Force)	models/recruit.mdl	❔	❔
monster_rosenberg (Half-Life: Blue-Shift)	models/scientist.mdl	📃	❌	Skin tied to body. Blue Shift replaces scientist's Slick head to Rosenberg.
monster_satchel	models/w_satchel.mdl	❔	❔
monster_scientist	models/scientist.mdl	📃	❌	Skin tied to body.
monster_scientist_dead	models/scientist.mdl	📃	❌	Skin tied to body.
monster_sentry	models/sentry.mdl	❔	❔
monster_shockroach (Half-Life: Opposing Force)	models/w_shock_rifle.mdl	❔	❔
monster_sitting_cleansuit_scientist (Half-Life: Opposing Force)	models/cleansuit_scientist.mdl	📃	❌	Skin tied to body.
monster_sitting_scientist	models/scientist.mdl	📃	❌	Skin tied to body.
monster_skeleton_dead (Half-Life: Opposing Force)	models/skeleton.mdl	✔️	✔️
monster_snark	models/w_squeak.mdl	❔	❔
monster_shocktrooper (Half-Life: Opposing Force)	models/strooper.mdl	❔	❔
monster_tentacle	models/tentacle2.mdl	❔	❔
monster_tripmine	models/v_tripmine.mdl	❔	❔
monster_turret	models/turret.mdl	❔	❔
monster_zombie	models/zombie.mdl	✔️	✔️	Vault: LD, HD
monster_zombie_barney (Half-Life: Opposing Force)	models/zombie_barney.mdl	✔️	✔️
monster_zombie_soldier (Half-Life: Opposing Force)	models/zombie_soldier.mdl	✔️	✔️
monster_zombie_soldier_dead (Half-Life: Opposing Force)	models/zombie_soldier.mdl	✔️	✔️
Entity	Model	Body	Skin	Remarks

Notes

1. For what direct value support means, and how to calculate the values, consult Entity Programming - Introduction to Entities with Animated Models#Low-level animation control and skip to the part where body and skin are discussed.
2. The paths are relative to their respective mod folders relative to Half-Life executable:
   • Half-Life = valve/
   • Half-Life: Opposing Force = gearbox/
   • Half-Life: Blue Shift = bshift/
3. The models in the expansion packs generally have extra animations not present in Half-Life.
4. Dead monsters usually has an enumeration of pose values.
5. Applying dead poses to living monsters with scripted_sequences usually don't actually make them dead. Best to use env_sprite for that.

Props

To facilitate prop model placement, this section tabulates properties of select entities, and how they handle keyvalues (body/ skin/ sequence/ frame/ framerate).

Entity	Nonsolid/Moveable	Body	Skin	Sequence	Frame	Framerate	Loopable/Freezeable	Remarks
cycler	❌/❌	✔️	✔️	✔️	✔️	❌→ 1	✔️/✔️ (Toggle)	Beware of cyclic functions.
cycler_sprite	❌/❌	✔️	✔️	✔️	❌	❌→ 1	✔️/✔️ (Toggle)	"
env_sprite	✔️/❌	❌	❌	✔️	❌	✔️	✴️/✔️ (OFF/ON)	Plays a sequence once and then freezes.
monster_furniture	✔️/❌	✔️	✔️	❌*	❌	❌	❌/❌	Requires scripted_sequence to set sequence.
monster_generic	🚩/✔️	✔️	✔️	❌	❌	❌	❌/❌	Alive, aggroes enemies.