Half Life

Start Half-Life using "hl.exe -console".
You may do this by modifying the windows shortcut 
properties for Half-Life and adding "-console" to 
the end of the "Target" (or file to run). 

The /GIVE command works if you start the game with 
the -dev -console parameter, and that the God mode 
cheat and map change cheat only work with the -console
parameter.

This will let you access the console using "~" key.

You may have to type "sv_cheats 1" in console first.
The following commands are available in console:


/GOD        - god mode. 
/NOCLIP     - walk through walls/fly. 
IMPULSE 101 - Give all weapons and ammo.
/MAP xxxx   - go to map xxxx. Map names are of the format c#a#, 
              (c1a1, c2a1, etc). 
              See the map list for names of all levels. 
/GIVE xxxx  - give item xxxx. The following items are available: 

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 


Single Player Maplist:
----------------------
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