Half-Life Cheat Codes

8 cheat codes for Half-Life on PC.

All Weapons + Ammo (Weapons)

The single most famous Half-Life cheat — grants every weapon with full ammo.

impulse 101

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

God Mode (God Mode)

Full invincibility.

god

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

No Clipping (Misc)

Walk through walls and fly.

noclip

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

Enemies Ignore You (Misc)

Enemies won't see you.

notarget

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

Level Warp (Level Skip)

Loads any level — map c0a0 is the very first (Black Mesa Inbound tram).

map <mapname>

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

Full Health (Misc)

Give items directly — healthkits, batteries, ammo by name.

/give item_healthkit

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

Unlimited Air (Misc)

Gives an airtank — useful for the long underwater sections.

/give item_airtank

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.

Low Gravity (Misc)

Set gravity — sv_gravity 100 for moon jumps, sv_gravity 800 for normal.

sv_gravity <number>

Enable the console in Options > Keyboard > Advanced, press ~ to open it, type sv_cheats 1 and press Enter, then enter the cheat commands.