The following is a list of entities found in various MOD dll files.

The Valve hl.dll file is listed first, followed by some MODs that I
have downloaded.  The entities listed under other MODs are new entities
that are not found in the Half-Life Standard SDK (hence they are new).

For each MOD I don't show a list of entities that were REMOVED from the
Standard SDK, so don't assume that all the Standard SDK entities exist
in a MOD just because they exist in the Standard SDK (i.e. MODS may not
remove an entity just because they don't use it).

NOTE: Some entities may appear in MORE than 1 MOD with the same name.
These entities DON'T necessarily do the same thing!!!

Valve hl.dll
> aiscripted_sequence
> ambient_generic
> ammo_357
> ammo_9mmAR
> ammo_9mmbox
> ammo_9mmclip
> ammo_ARgrenades
> ammo_buckshot
> ammo_crossbow
> ammo_egonclip
> ammo_gaussclip
> ammo_glockclip
> ammo_mp5clip
> ammo_mp5grenades
> ammo_rpgclip
> beam
> bmortar
> bodyque
> button_target
> cine_blood
> controller_energy_ball
> controller_head_ball
> crossbow_bolt
> cycler
> cycler_prdroid
> cycler_sprite
> cycler_weapon
> cycler_wreckage
> DelayedUse
> env_beam
> env_beverage
> env_blood
> env_bubbles
> env_debris
> env_explosion
> env_fade
> env_funnel
> env_global
> env_glow
> env_laser
> env_lightning
> env_message
> env_render
> env_shake
> env_shooter
> env_smoker
> env_sound
> env_spark
> env_sprite
> fireanddie
> func_breakable
> func_button
> func_conveyor
> func_door
> func_door_rotating
> func_friction
> func_guntarget
> func_healthcharger
> func_illusionary
> func_ladder
> func_monsterclip
> func_mortar_field
> func_pendulum
> func_plat
> func_platrot
> func_pushable
> func_recharge
> func_rotating
> func_rot_button
> func_tank
> func_tankcontrols
> func_tanklaser
> func_tankmortar
> func_tankrocket
> func_trackautochange
> func_trackchange
> func_tracktrain
> func_train
> func_traincontrols
> func_wall
> func_wall_toggle
> func_water
> game_counter
> game_counter_set
> game_end
> game_player_equip
> game_player_hurt
> game_player_team
> game_score
> game_team_master
> game_team_set
> game_text
> game_zone_player
> garg_stomp
> gibshooter
> grenade
> hornet
> hvr_rocket
> infodecal
> info_bigmomma
> info_intermission
> info_landmark
> info_node
> info_node_air
> info_null
> info_player_deathmatch
> info_player_start
> info_target
> info_teleport_destination
> item_airtank
> item_antidote
> item_battery
> item_healthkit
> item_longjump
> item_security
> item_sodacan
> item_suit
> laser_spot
> light
> light_environment
> light_spot
> momentary_door
> momentary_rot_button
> monstermaker
> monster_alien_controller
> monster_alien_grunt
> monster_alien_slave
> monster_apache
> monster_babycrab
> monster_barnacle
> monster_barney
> monster_barney_dead
> monster_bigmomma
> monster_bloater
> monster_bullchicken
> monster_cine2_hvyweapons
> monster_cine2_scientist
> monster_cine2_slave
> monster_cine3_barney
> monster_cine3_scientist
> monster_cine_barney
> monster_cine_panther
> monster_cine_scientist
> monster_cockroach
> monster_flyer
> monster_flyer_flock
> monster_furniture
> monster_gargantua
> monster_generic
> monster_gman
> monster_grunt_repel
> monster_headcrab
> monster_hevsuit_dead
> monster_hgrunt_dead
> monster_houndeye
> monster_human_assassin
> monster_human_grunt
> monster_ichthyosaur
> monster_leech
> monster_miniturret
> monster_mortar
> monster_nihilanth
> monster_osprey
> monster_rat
> monster_satchel
> monster_scientist
> monster_scientist_dead
> monster_sentry
> monster_sitting_scientist
> monster_snark
> monster_tentacle
> monster_tentaclemaw
> monster_tripmine
> monster_turret
> monster_vortigaunt
> monster_zombie
> multisource
> multi_manager
> nihilanth_energy_ball
> node_viewer
> node_viewer_fly
> node_viewer_human
> node_viewer_large
> path_corner
> path_track
> player
> player_loadsaved
> player_weaponstrip
> rpg_rocket
> scripted_sentence
> scripted_sequence
> soundent
> spark_shower
> speaker
> squidspit
> streak_spiral
> target_cdaudio
> testhull
> test_effect
> trigger
> trigger_auto
> trigger_autosave
> trigger_camera
> trigger_cdaudio
> trigger_changelevel
> trigger_changetarget
> trigger_counter
> trigger_endsection
> trigger_gravity
> trigger_hurt
> trigger_monsterjump
> trigger_multiple
> trigger_once
> trigger_push
> trigger_relay
> trigger_teleport
> trigger_transition
> weaponbox
> weapon_357
> weapon_9mmAR
> weapon_9mmhandgun
> weapon_crossbow
> weapon_crowbar
> weapon_egon
> weapon_gauss
> weapon_glock
> weapon_handgrenade
> weapon_hornetgun
> weapon_mp5
> weapon_python
> weapon_rpg
> weapon_satchel
> weapon_shotgun
> weapon_snark
> weapon_tripmine
> worldspawn
> world_items
> xen_hair
> xen_hull
> xen_plantlight
> xen_spore_large
> xen_spore_medium
> xen_spore_small
> xen_tree
> xen_ttrigger


Action Half-Life (BETA 3)
> ammo_50cal
> ammo_766mm
> ammo_hkmp5
> ammo_m4
> ammo_m4clip
> ammo_msg90
> ammo_pistol
> ammo_rifleclip
> ammo_shells
> ammo_sniper
> bot
> chaseent
> func_hostage_rescue
> game_item
> game_player_die
> game_player_message
> game_roundend
> hostage_entity
> info_hostage_rescue
> info_location
> info_player_deadstart
> info_team
> item_bandolier
> item_flashlight
> item_laser
> item_nightvision
> item_silencer
> item_stealth
> item_vest
> monster_hostage
> monster_victim
> sams_shower
> target_key
> thrown_knife
> tk_label
> trigger_hostage
> way_point_ent
> weapon_50cal
> weapon_akimbob
> weapon_anaconda
> weapon_beretta
> weapon_frag
> weapon_handcannon
> weapon_hkmp5
> weapon_ithaca
> weapon_knife
> weapon_m4
> weapon_msg90
> weapon_rifle
> weapon_sniper


Botman's Bot (Number 8)
> bot
> entity_botcam


Counter-Strike (BETA 6.0)
> ammo_338magnum
> ammo_357sig
> ammo_45acp
> ammo_50ae
> ammo_556nato
> ammo_57mm
> ammo_762nato
> ammo_9mm
> ammo_flashbang
> armoury_entity
> debris
> env_bombglow
> func_bomb_target
> func_buyzone
> func_escapezone
> func_hostage_rescue
> func_vip_safetyzone
> hostage_entity
> info_bomb_target
> info_hostage_rescue
> info_map_parameters
> info_vip_start
> item_assaultsuit
> item_kevlar
> item_thighpack
> weapon_ak47
> weapon_aug
> weapon_awp
> weapon_c4
> weapon_deagle
> weapon_flashbang
> weapon_g3sg1
> weapon_glock18
> weapon_hegrenade
> weapon_knife
> weapon_m249
> weapon_m3
> weapon_m4a1
> weapon_mac10
> weapon_mp5navy
> weapon_p228
> weapon_p90
> weapon_scout
> weapon_sg552
> weapon_shield
> weapon_tmp
> weapon_usp
> weapon_xm1014


Goldeneye (beta 1)
> ammo_AK47clip
> ammo_colt45clip
> ammo_d5kclip
> ammo_deagleclip
> ammo_p99clip
> ammo_rcp90clip
> ammo_veprclip
> bot
> entity_botcam
> info_mapdetect
> monster_proximity
> spawnfar
> weapon_ak47
> weapon_colt45
> weapon_d5k
> weapon_deagle
> weapon_knife
> weapon_p99
> weapon_proximity
> weapon_rcp90
> weapon_vepr


Cold Ice (beta1 x2)
> ammo_boltgun
> ammo_buckshotbox
> ammo_chaingunbox
> ammo_contact
> ammo_m16clip
> ammo_magclip
> ammo_nukeclip
> ammo_ppkclip
> ammo_railslug
> ammo_rifleclip
> ammo_rocket
> ammo_timed
> ammo_uziclip
> grapple_hook
> item_jumpmodule
> monster_chumtoad
> nuke
> rocket
> weapon_ashotgun
> weapon_boltgun
> weapon_chaingun
> weapon_chumtoad
> weapon_doubleuzi
> weapon_grenadel
> weapon_ifrtripmine
> weapon_knife
> weapon_m16
> weapon_mag60
> weapon_nuke
> weapon_ppk
> weapon_railgun
> weapon_rifle
> weapon_rocketl
> weapon_sshotgun
> weapon_sword
> weapon_tnt
> weapon_uzi


The Jumbot (Version 1.7)
> (NONE)


Phineas Bot (Version 0.21)
> (NONE)


Rho-Bot (Version 1.0)
> (NONE)


Science & Industry (version 0.95)
> ammo_vomitclip
> info_administrator
> info_scientist
> info_scientist_dead
> info_scientist_start
> info_transistor


Team Fortress Classic (Version 1)
> building_dispenser
> building_sentrygun
> building_sentrygun_base
> detpack
> func_nobuild
> ghost
> info_player_teamspawn
> info_tfdetect
> info_tfgoal
> info_tfgoal_timer
> item_armor1
> item_armor2
> item_armor3
> item_artifact_envirosuit
> item_artifact_invisibility
> item_artifact_invulnerability
> item_artifact_super_damage
> item_cells
> item_health
> item_rockets
> item_shells
> item_spikes
> item_tfgoal
> i_p_t
> i_t_g
> i_t_t
> teledeath
> tf_ammo_rpgclip
> tf_flame
> tf_flamethrower_burst
> tf_gl_grenade
> tf_ic_rocket
> tf_nailgun_nail
> tf_rpg_rocket
> tf_weapon_ac
> tf_weapon_autorifle
> tf_weapon_axe
> tf_weapon_caltrop
> tf_weapon_caltropgrenade
> tf_weapon_concussiongrenade
> tf_weapon_empgrenade
> tf_weapon_flamethrower
> tf_weapon_gasgrenade
> tf_weapon_genericprimedgrenade
> tf_weapon_gl
> tf_weapon_ic
> tf_weapon_knife
> tf_weapon_medikit
> tf_weapon_mirvbomblet
> tf_weapon_mirvgrenade
> tf_weapon_nailgrenade
> tf_weapon_napalmgrenade
> tf_weapon_ng
> tf_weapon_normalgrenade
> tf_weapon_pl
> tf_weapon_railgun
> tf_weapon_rpg
> tf_weapon_shotgun
> tf_weapon_sniperrifle
> tf_weapon_spanner
> tf_weapon_superng
> tf_weapon_supershotgun
> tf_weapon_tranq
> timer
