GamePatchPlanet - Half-Life 2: Episode One Cheats, Codes, Trainers, Patch Updates, Demos

Cheat Codes
Start Steam and go to the "Play Games" menu, and select Half-Life 2: Episode One. Right click it and select "Properties". Click the "Launch Options" button then type -console Click "OK", then close it. Double click "Half-Life 2: Episode One" to start the game. Once it is loaded during gameplay press ~ (Tilde) to bring up the console window. Then, enter sv_cheats 1 and press Enter to enable cheat mode. You can now enter the following codes at the console window. Any code can be used as a command line parameter by prefixing it with the "-" character. Note: For games that were downloaded from Steam, to use cheats in single player mode, start the game with the -applaunch -dev -tconsole command line. You can also use the cheats from the original Half-Life 2.
noclip - Walk through objects (server only)
god - God mode (server only)
notarget - Ignored by NPCs
give <item name> - Spawn indicated item
buddha - Reduce your health
hurtme <amount> - Damage player
impulse 101 - All weapons
maps - List maps
map <map name> - Load indicated map
sk_max_357 <number> - Set max ammo for .357 Magnum
sk_max_ar2 <number> - Set max ammo for Pulse Rifle
sk_max_ar2_altfire <number> - Set max ammo for Pulse Rifle energy orbs
sk_max_buckshot <number> - Set max ammo for shotgun
sk_max_crossbow <number> - Set max ammo for crossbow
sk_max_grenade <number> - Set max ammo for hand grenades
sk_max_pistol <number> - Set max ammo for pistol
sk_max_rpg_round <number> - Set max ammo for RPG
sk_max_smg1 <number> - Set max ammo for submachine gun
sk_max_smg1_grenade <number> - Set max ammo for SMG grenades
sk_plr_dmg_pistol <number> - Set damage value for pistol
sk_plr_dmg_357 <number> - Set damage value for .357 Magnum
sk_plr_dmg_ar2 <number> - Set damage value for Pulse Rifle
sk_plr_dmg_buckshot <number> - Set damage value for shotgun
sk_plr_dmg_crossbow <number> - Set damage value for crossbow
sk_plr_dmg_crowbar <number> - Set damage value for crowbar
sk_plr_dmg_grenade <number> - Set damage value for grenades
sk_plr_dmg_rpg_round <number> - Set damage value for RPG rockets
sk_plr_dmg_smg1 <number> - Set damage value for submachine gun
sk_plr_dmg_smg1_grenade <number> - Set damage value for SMG grenades

Map Names
Use one of the following map names with the above map code:
ep1_background01 - Looking up at the citadel (glitch)
ep1_background01a - Looking in the car garage (glitch)
ep1_background02 - Looking off into the damaged City 17 (glitch)
ep1_c17_00 - Beginning of Chapter 3
ep1_c17_00a - City 17 after the first load point
ep1_c17_01 - Beginning of Chapter 4
ep1_c17_02 - Chapter 4 City 17 after the first load point
ep1_c17_02a - Chapter 4 City 17 after the second load point
ep1_c17_02b - Chapter 4 City 17 after the third load point
ep1_c17_05 - Last Chapter
ep1_c17_06 - Last Chapter near the end
ep1_citadel_00 - Introduction
ep1_citadel_01 - Citadel after the first load point
ep1_citadel_02 - Citadel after the second load point
ep1_citadel_02b - Citadel before the lift ride
ep1_citadel_03 - Citadel after the third load point
ep1_citadel_04 - Near the end of the Citadel

NPC Names
Use one of the following names with the above npc_create code:
npc_alyx - Alyx
npc_antlionguard - Antlion guard
npc_antlion - Antlion
npc_barnacle - Barnacle
npc_barney - Barney
npc_breen - Breen
npc_turret_ceiling - Ceiling Turret
npc_citizen - City 17 Citizen
npc_cscanner - Combine Scanner
npc_combine_s - Combine Soldier
npc_crow - Crow
npc_dog - Dog
npc_fastzombie - Fast Zombie
npc_hunter - Hunter (Early version of the game)
npc_pigeon - Pigeon
npc_seagull - Seagull
npc_stalker - Stalker
npc_strider - Strider
npc_vortigaunt - Vortigaunt
npc_zombie_torso - Zombie without legs
npc_zombie - Zombie
npc_zombine - Zombine (Combine Zombie)

Item names
Use the following name with the above give code:
weapon_hopwire - Black Hole grenade