Half-Life 2: Episode One

Codes

At the console, accessable by pressing ~, enter hopwire_vortex 1.
Then enter the following code:

Effect	Code
weapon_hopwire	Black Hole Grenade

Contributed By: Gram_kun.

To enter this commands you must open up the console by pressing the "~" key.

Effect	Code
hurtme #	Damages you for however much damage you put as the number.
maps	Lists all maps
sk_plr_dmg_357 #	Set Damage Value for .357 Magnum
sk_plr_dmg_crossbow #	Set Damage Value for Crossbow
sk_plr_dmg_crowbar #	Set Damage Value for Crowbar
sk_plr_dmg_grenade #	Set Damage Value for Grenades
sk_plr_dmg_pistol #	Set Damage Value for Pistol
sk_plr_dmg_ar2 #	Set Damage Value for Pulse Rifle
sk_plr_dmg_rpg_round #	Set Damage Value for RPG Rockets
sk_plr_dmg_buckshot #	Set Damage Value for Shotgun
sk_plr_dmg_smg1_grenade #	Set Damage Value for SMG Grenades
sk_plr_dmg_smg1 #	Set Damage Value for Submachine Gun
sk_max_357 #	Set Max Ammo for .357 Magnum
sk_max_crossbow #	Set Max Ammo for Crossbow
sk_max_grenade #	Set Max Ammo for hand Grenades
sk_max_pistol #	Set Max Ammo for Pistol
sk_max_ar2 #	Set Max Ammo for Pulse Rifle
sk_max_ar2_altfire #	Set Max Ammo for Pulse Rifle energy orbs
sk_max_rpg_round #	Set Max Ammo for RPG
sk_max_buckshot #	Set Max Ammo for Shotgun
sk_max_smg1_grenade #	Set Max Ammo for SMG Grenades
sk_max_smg1 #	Set Max Ammo for Submachine Gun

Contributed By: Shadow..

Enter these with the 'map' code in the console. Press ~ to activate the console.

Effect	Code
ep1_c17_00	Spawns you at the beginning of Chapter 3
ep1_c17_01	Spawns you at the beginning of Chapter 4
ep1_c17_02	Spawns you in Chapter 4 City 17 after the first load point.
ep1_c17_02a	Spawns you in Chapter 4 City 17 after the second load point.
ep1_c17_02b	Spawns you in Chapter 4 City 17 after the third load point.
ep1_c17_00a	Spawns you in City 17 after the first load point.
ep1_citadel_01	Spawns you in the Citadel after the first load point.
ep1_citadel_02	Spawns you in the Citadel after the second load point.
ep1_citadel_03	Spawns you in the Citadel after the third load point.
ep1_citadel_02b	Spawns you in the Citadel before the lift ride.
ep1_c17_06	Spawns you in the last Chapter near the end.
ep1_c17_05	Spawns you in the last Chapter.
ep1_background01a	Spawns you looking in the car garage. (You are unable to move or do anything)
ep1_background02	Spawns you looking off into the damaged City 17. (You are unable to move or do anything)
ep1_background01	Spawns you looking up at the citadel. (You are unable to move of do anything)
ep1_citadel_04	Spawns you near the end of the Citadel.
credits	Starts you at the credits.
ep1_citadel_00	Starts you at the intro of the game.

Contributed By: Shadow..

With the console enabled through advanced keyboard options, go into the console with the tilde (~) key and type:

Effect	Code
npc_create npc_ministrider	Spawns the Hunter

Contributed By: Shoy.

Access the console, type in "npc_create npc_<name>" and replace the name with one of these:

Effect	Code
barnacle	Spawns a barnacle.
turret_ceiling	Spawns a Ceiling Turret.
citizen	Spawns a City 17 Citizen.
combinedropship	Spawns a Combine Dropship
helicopter	Spawns a Combine Helicopter
metropolice	Spawns a Combine Metrocop
cscanner	Spawns a Combine Scanner.
combine_s	Spawns a Combine Soldier.
crabsynth	Spawns a Crab Synth
crow	Spawns a Crow
headcrab_fast	Spawns a Fast Headcrab
fastzombie	Spawns a Fast Zombie.
turret_floor	Spawns a Floor Turret.
launcher	Spawns a Headcrab Launcher
headcrab	Spawns a Headcrab.
ichthyosaur	Spawns a Ichthyosaur.
manhack	Spawns a Manhack
mortarsynth	Spawns a Mortar Synth
pigeon	Spawns a Pigeon.
headcrab_poison	Spawns a Poison Headcrab
headcrab_black	Spawns a Poison Headcrab
poisonzombie	Spawns a Poison Zombie.
rollermine	Spawns a Rollermine.
seagull	Spawns a Seagull
stalker	Spawns a Stalker.
strider	Spawns a Strider.
vortigaunt	Spawns a Vortigaunt.
zombie_torso	Spawns a Zombie without legs.
zombie	Spawns a Zombie.
zombine	Spawns a Zombine (Combine Zombie)
alyx	Spawns Alyx.
antlionguard	Spawns an Antlion Guard.
antlion	Spawns an Antlion.
barney	Spawns Barney.
breen	Spawns Breen.
combinegunship	Spawns Combine Gunship
dog	Spawns Dog.
eli	Spawns Eli
monk	Spawns Father Gregori
gman	Spawns Gman
kleiner	Spawns Kleiner
mossman	Spawns Mossman

Contributed By: Shadow..

Hit the '~' key to open a prompt, type "sv_cheats 1" and enter codes.

Effect	Password
Impulse 101	All guns, extra ammo.
showtriggers_toggle	Draw game triggers.
mat_normalmaps 1	Draw normal maps.
mat_normals 1	Draw surface materials.
notarget	Enemies can't see you.
npc_kill	Kills all npc’s in the area.
vcollide_wireframe 1	Only objects effected by physics are wireframe.
impulse 200	Removes the weapon model from the screen.
ch_createjeep	Spawn a scout car.
impulse 83	Spawn an airboat.
ch_createairboat	Spawn an airboat.
god	Toggle god mode on/off
noclip	Toggle walking through walls on/off
mat_fastnobump 0	Turn off bump mapping.
mat_wireframe1	Wire frame models.

Contributed By: TotalSpaceshipG, Darth1337, Shadow., and Mephisto852.

Achievement	Description
Destroy the gunship in the hospital attic.	Attica!
Use the cars to squash 15 antlions in Episode One.	Car Crusher
Don't let any citizens die when escorting them to the escape train.	Citizen Escort
Kill five enemies with the same energy ball.	Conservationist
Contain the Citadel core.	Containment
Survive long enough to get on the parking garage elevator.	Elevator Action
Escape city 17 with alyx.	Escape From City 17
Help Alyx snipe 30 enemies in Episode One.	Live Bait
Contain the Citadel core without killing any stalkers.	Pacifist
Finish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay!	The One Free Bullet
Kill an Elite Soldier with his own energy ball.	Think Fast!
Make it to the bottom of the Citadel's main elevator shaft in one piece.	Watch Your Head!
Use flares to light 15 zombies on fire.	Zombie-que

Contributed By: Guard Master.