Half-Life: Decay is an add-on included in the PlayStation 2 port of the first-person shooter computer game Half-Life, developed by Gearbox Software and published in October of 2001. Our team is working on straight port of this game to PC! we shouldn\'t have to be doing this, but for some reason valve/ gearbox scraped decay for the pc. \"Decay PC\"\'s active development began in mid-October of 2005. Like Gearbox\'s other expansion packs Opposing Force and Blue Shift, Decay returns to the setting and timeline of the original story, but with different player characters: two female colleagues of Gordon Freeman, Dr. Gina Cross and Dr. Colette Green,who both take part in the Anomalous Materials laboratory experiment - they make preparations for the experiment under the Test Chamber such as monitoring Anti-Mass spectrometer and delivering anomalous materials to Dr. Freeman. When disaster happens both women together with their collegues Dr. Rosenberg... Read More...

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Hello, This Is My First Post. Heres Some International posted news about decay:Planet Half-life halflife2.net half-life falloutRock, Paper And Shotgun CS-Nation Half-LIfe Inside Trgamer Half-Life2.skAdded By BarnzAnd Also Half Life Decay Was Realesed at 25 septemberIt Happened Where Officialy Realesed Half Life Decay Pc Port!You Can Download The Game At Our Website s Download Page

Download the Half Life Decay game

Download the Half Life Decay game

4 years ago Other 3 comments

Open this tutorial to get Half Life Decay link and download it.

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Half Life Decay

Half Life Decay

1 year ago Full Version 20 comments

Half-Life: Decay is an add-on included in the PlayStation 2 port of the first-person shooter computer game Half-Life, developed by Gearbox Software and...

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Guest Nov 13 2015 says:

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DimanGamer Aug 26 2015 says:

Really nice mod

+2 votes     reply to comment
rea987 Mar 21 2015 says:


I prepared an installation and running guide for GNU/Linux. Enjoy! ;-)


+3 votes     reply to comment
rea987 Feb 10 2015 says:

I partially managed the mod to run on GNU/Linux by copying hl.so from /Half-Life/valve/dlls to /Half-Life/decay/dlls and adding gamedll_linux "dlls/hl.so" line to liblist.gam in /Half-Life/decay. However the game rejects to join any internet servers. When I try to play the game as single player, it starts but fails to load second player and NPCs, unable to switch between players; so it is not possible to proceed. The mod/game needs some sort of decay.so to function on Linux properly.

+1 vote     reply to comment
cryptid85 Aug 12 2014 says:

No Mac or Linux :(

+1 vote     reply to comment
jeremydog May 22 2014 says:

i know it's probably a pain to do, but could you make a version where you don't have to keep switching players?

+2 votes     reply to comment
Justiceiro Jun 10 2014 replied:

Could have added barney's AI to co-star (shoot and follow), while he was not being controlled

+3 votes     reply to comment
Sepp4Ever Jan 26 2014 says:

It wont launch.HELP!!

+1 vote     reply to comment
chris_paul Jan 2 2014 buried:



-12 votes     reply to comment
FirstaidGames Jul 11 2014 replied:

Don't be a douchebag chris

+4 votes     reply to comment
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Release date
Released 2008
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156 votes submitted.

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Highest Rated (2 agree) 10/10

Good addon with cool gameplay, atmosphere, design and plot.

Jun 8 2012 by ildarion

Lowest Rated (2 agree) 3/10

this was to be fantastic if the history made any sence =P

Jul 13 2009 by bluluxabica

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Half-Life: Decay
Last Update
3 years ago
353 members