Half-Life Cheats and Hints.

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To enter cheat mode

Rating: 27%

Load game with the command line: hl.exe -dev -toconsole. Then, press ~ if the orange text on the screen does not disappear. During gameplay, press ~ to display the text prompt and type in sv_cheats 1. Press ~ and enter one of the following console commands to activate the corresponding cheat function.

Code	Effect
/god	God mode
/sv_gravity <-999 - 999999>	Adjust gravity
/impulse 101	All weapons and ammo
/developer 1	Developer mode on
/developer 2	Verbose developer mode
/developer 0	Developer mode off
/kill	Suicide
/map <map name>	Map select1
/noclip	No clipping mode
/give <item name>	Obtain item2
/notarget	Opponents ignore character
/thirdperson	Third person view
/firstperson	Return to first person view
/+reload	Auto-reload enabled
/-reload	Auto-reload disabled
/speak <word>	Speak word
/speak <word.word2.word3>	Speak sentence
/lambert -1.0001	See things brightly without flashlight
/r_fullbright <0,1>	Toggle light amplifier
/host_framerate <0,1>	Toggle game speed
/impulse 101	HEV suit, weapons, and ammo
/impulse 102	Spawns gibs and blood
/impulse 103	Monster stats, while looking at monster
/impulse 104	List global entities
/impulse 105	Silent player
/impulse 106	Model/sprite stats, while looking at target
/impulse 107	Texture name, while looking at object
/impulse 109	Control onscreen monsters
/impulse 195	AI node information
/impulse 196	AI node information
/impulse 197	AI node information
/impulse 199	AI node information
/impulse 203	Delete monster or NPC from world

Did this work for you? or
12 of 45 people have said this worked for them.

On: October 1st 2002

	Map name list	Rating: Pending
	Single player c0a0 c0a0a c0a0b c0a0c c0a0d c0a0e c1a0 c1a0a c1a0b c1a0c c1a0d c1a0e c1a1 c1a1a c1a1b c1a1c c1a1d c1a1f c1a2 c1a2a c1a2b c1a2c c1a2d c1a3 c1a3a c1a3b c1a3c c1a3d c1a4 c1a4b c1a4d c1a4e c1a4f c1a4g c1a4i c1a4j c1a4k c2a1 c2a1a c2a1b c2a2 c2a2a c2a2b1 c2a2b2 c2a2c c2a2d c2a2e c2a2f c2a2g c2a2h c2a3 c2a3a c2a3b c2a3c c2a3d c2a3e c2a4 c2a4a c2a4b c2a4c c2a4d c2a4e c2a4f c2a4g c2a5 c2a5a c2a5b c2a5c c2a5d c2a5e c2a5f c2a5g c2a5w c2a5x c3a1 c3a1a c3a1b c3a2 c3a2a c3a2b c3a2c c3a2d c3a2e c3a2f c4a1 c4a1a c4a1b c4a1c c4a1d c4a1e c4a1f c4a2 c4a2a c4a2b c4a3 c5a1 Multiplayer/Deathmatch boot_camp bounce datacore lambda_bunker snark_pit stalkyard subtransit undertow Hazard course t0a0 t0a0a t0a0b t0a0b1 t0a0b2 t0a0c t0a0d Did this work for you? or 3 of 3 people have said this worked for them.
	On: October 1st 2002

	Item name list	Rating: Pending
	item_airtank item_antidote item_battery item_healthkit item_longjump item_security item_sodacan item_suit 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 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 weapon_quantumdestabilizer Did this work for you? or 1 of 3 people have said this worked for them.
	On: October 1st 2002

To enter cheat mode (alternate)

Rating: Pending

Start the game with one of the following command line parameters to activate the corresponding cheat function.

Command Line Parameter	Effect
-console	Press ~ during game play to activate console
-numericping	Alternate latency display in v1.0.0.8 or later
-nointro	Bypass opening FMV sequences
-noip	Disable dial up networking box during LAN play.
-wavonly	Disable DirectSound
-noipx	Disable IPX errors during LAN play
-dev	Enable developers mode
-heapsize <bytes>	Force amount of RAM available to game
-startwindowed	Windowed game play screen

Did this work for you? or
1 of 2 people have said this worked for them.

On: October 1st 2002

	Monster creation	Rating: Pending
	You must be within the loading area of the desired monster for this cheat to work. For example, you cannot load up Barney while fighting the Nihilanth. Enter give <monster name> and the corresponding monster will appear. Note: Activate the /noclip first, or you will be stuck inside the monster. People monster_human_grunt monster_barney monster_scientist monster_generic monster_gman Monsters monster_sentery monster_headcrab monster_alien_slave monster_alien_grunt monster_bullchicken monster_zombie monster_apache monster_ichthyosaur monster_bigmomma monster_barnacle monster_tentacle monster_gargantuan monster_nihilanth monster_houndeye xen_tree xen_spore_small xen_spore_medium xen_spore_large Corpses monster_barney_dead monster_scientist_dead monster_hevsuit_dead Did this work for you? or 4 of 4 people have said this worked for them.
	On: October 1st 2002

	Key binding	Rating: Pending
	To activate codes easier, bind them to keys. For example, type /bind v "impulse 101" at the console window to bind the "HEV suit, weapons, and ammo " code to the "V" key. Did this work for you? or 4 of 4 people have said this worked for them.
	On: October 1st 2002

	Zoom on every weapon	Rating: Pending
	Get the Crossbow in single player mode and do a quick save with the weapon that you want to zoom in with. Change to the Crossbow and zoom in, then quick load and your other weapon will be zoomed in. You can now change weapons and they will all be zoomed in. To come out of zoom, change back to the Crossbow and press the second fire button until it zooms out again. Did this work for you? or 1 of 1 people have said this worked for them.
	On: October 1st 2002

	Completing We've Got Hostiles quickly	Rating: Pending
	As soon as you enter the "We've Got Hostiles" level, turn to your right and use the /noclip code to float through the glass window with the security guard being eaten by the zombie. When you are in there, press the switch that opens the Silo and the Silo door will open. Float back out of the room, disable the noclip code, then go through the Silo door to start the next level. Did this work for you? or 2 of 3 people have said this worked for them.
	On: October 1st 2002

	HEV suit falls out	Rating: Pending
	Enable the /impulse 101 code while in mid-air and an error saying the hev suit has fallen out will appear. Did this work for you? or 2 of 3 people have said this worked for them.
	On: October 1st 2002

	Starting tips	Rating: Pending
	After the "accident", you will discover a scientist giving CPR to a security guard. Wait 15 to 20 seconds to see the outcome, which usually results in the security guard being revived. He is not useful at this time, but return to him after getting the crowbar. Kill him with the crowbar so he can not fire back to get his gun and ammunition. Soon after this, you will ride an elevator upward. Have the gun ready. Shoot the monster attacking the security guard; a couple of shots should do it. This security guard can cover you until you reach the main entrance area. One important tactic in the early game is to use your "allies" to your advantage. When you no longer require the services of a security guard, kill him and take his ammunition. A scientist is also useful in drawing enemy attack. Be careful not to harm an ally when another security guard is present, as he will attack you. Also be aware that monsters can sense your allies; and even if you crawl, monsters can hear your allies' walk. The beginning of the game also has the following glitch. There is a scientist sitting in front of a damaged instrument panel, in the area of the first scientist who opened a door for you. This scientist is invincible. You can shoot or beat him with a crowbar, and all he will do is whine. This also saturates the area with a large amount of blood. Did this work for you? or 2 of 2 people have said this worked for them.
	On: October 1st 2002