Half-Life Hints from UHS

Get quick and convenient access to just the hints you need for Half-Life, without staying on our web site. Just download a free trial version of our UHS Reader software for Windows (and Palm OS) or Mac and a copy of these hints. You will get the same gradual hints you see here -- unlike ordinary cheats or a walkthrough that can spoil your game.

You can also buy the full version of the UHS Reader for Windows. For just $14.95, you get full access to hints for hundreds of games and 1 year of free updates. You can also search, decode, or print an entire game's worth of hints at once (Windows only).

If you have questions about a puzzle that aren't answered anywhere in these hints, you may contact the author here.

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Lambda Core

How can I best handle the assassins in Hazardous Materials Bay A?
Why won't the scientist open the door in Hazardous Materials Bay B?

How do I flood the nuclear reactor?
How do I get past steam-shooting pipes?
How do I get into the main reactor core?

How do I reach Level D of the reactor?
How do I make it into Level B of the reactor? The elevator is broken!
What are these glowing orbs floating in the air?
I have made it to the reactor core on Level B. Now what can I do?
How do I get out of the reactor area that the final Level B port took me to?

How do I make it into the alien world?
What are these aliens flying around in the main gateway room?
How do I keep the "gatekeeping" scientist alive?

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