Half-Life: Decay

Gearbox Software | Sierra Entertainment |

Half-Life: Decay is the the third expansion pack for the award-winning game, Half-Life. It was included as part of the PS2 version of Half-Life. Decay returns to the setting and timeline of the original story, albeit portraying the story from the viewpoint of a different set of protagonists: two scientists working in the Black Mesa Research Facility. Decay is a cooperative multiplayer game, designed to be played by two people working together to pass through the game's levels.

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SCP Themed Human Grunts

SCP Themed Human Grunts

Model Pack 2 comments

Scp Grunts included with all LD AND HD weapons in addition with an optional P906 rifle from sweet half life.

Opposing Force HEV Grunts (Compatable with Half Life and Opposing Force)

Opposing Force HEV Grunts (Compatable with Half Life and Opposing Force)

Model Pack 7 comments

This addon gives all the grunts from opposing force a HEV suit, It is also compatible with half with the default Hgrunts. Additionally i also added New...

total overdose main theme for half-life decay and goldsrc

total overdose main theme for half-life decay and goldsrc

Music

total overdose main theme for half-life decay and goldsrc

MMOD Black Ops (Compatable with Half Life and Opposing Force)

MMOD Black Ops (Compatable with Half Life and Opposing Force)

NPC Model 16 comments

An addon for MMOD That replaces the Grunts with Black OPs, there's also 2 additional models for vanilla half life and opposing force. Nightvision Glow...

Crossfire MP5 Navy With Grenade Launcher

Crossfire MP5 Navy With Grenade Launcher

Model Pack 6 comments

Crossfire Mp5 Rigged on 4 different hand models with 2 sets of animations, also equiped with all half life and Opposing Force Grunt models.

QBZ-95 Replacement for 9mmar

QBZ-95 Replacement for 9mmar

Model Pack

Crossfire QBZ-95 Reanimated by me on Mavkush's Base animations

Crossfire M4A1-S Replacement for 9mmar

Crossfire M4A1-S Replacement for 9mmar

Model Pack 3 comments

The M4A1-S From Crossfire. I may tweak a few things in the future if i have the time.

LD 357 with HD textures

LD 357 with HD textures

Weapon Model 3 comments

This is a mod that changes the textures on the Low-Def 357 to have High-Def textures. Inspired by HD 357 with LD textures and silver LD 357. Also u/larrythefatcat...

Extended High Definition Pack v16.4

Extended High Definition Pack v16.4

Model Pack 92 comments

Fully updated version of Gearbox's Half-Life High Definition Pack, both with original and new models and sprites. Also includes the "standalone HD directories...

Gina and Colette with switched suits (ginacol.mdl)

Gina and Colette with switched suits (ginacol.mdl)

Model Pack

Half-Life: Decay Gina Cross and Colette green with switched suits

holo in tan

holo in tan

Model Pack

I made Gina cross holo model in Tan you can use this model for Half-Life and Half-Life: Decay not sure if the others work.

holo in tan HD

holo in tan HD

Model Pack

The tan holo model in HD I made this because ive never seen someone doing this

Yellow Crowbar

Yellow Crowbar

Weapon Skin

Just a yellow and a perfect crowbar for Decay, perfect for kill headcrabs and destroy alien grunts

Decay fixed MP5 and shotgun sprites

Decay fixed MP5 and shotgun sprites

HUD 3 comments

These are the fixed sprites for MP5 shotgun in Decay.

[ESP] Traducción Half-Life STEAM LEGACY

[ESP] Traducción Half-Life STEAM LEGACY

Language Sounds 14 comments

Este complemento te permitirá mejorar la traducción existente de Half-Life y acceder a una serie de contenido, correcciones y opciones que harán que...

"We've Got Hostile" - Merging

"We've Got Hostile" - Merging

Singleplayer Map 20 comments

I manage to mix maps from "We've Got Hostiles" chapter from Half-Life 1, now instead of 5 maps, they are mixed in only 2. I wanted to make them all in...

Decay Classic Pack (2008 Port)

Decay Classic Pack (2008 Port)

Model Pack 41 comments

Half-Life: Decay - Classic Pack **This pack is mainly for the 2008 fan mod port of Decay and shall be re-worked in the future if a new Decay port arrives...

Decay Additional Patch (2008 Port)

Decay Additional Patch (2008 Port)

Model Pack 24 comments

Half-Life: Decay - Additional Patch **This pack is mainly for the 2008 fan mod port of Decay and shall be re-worked in the future if a new Decay port...

Decay Dreamcast Pack (2008 Port)

Decay Dreamcast Pack (2008 Port)

Model Pack 14 comments

Half-Life Dreamcast Pack for Half-Life: Decay **This pack is mainly for the 2008 fan mod port of Decay and shall be re-worked in the future if a new Decay...

Italian language pack for Half-Life: Decay mod

Italian language pack for Half-Life: Decay mod

Language Sounds

Italian language files for the "Half-Life: Decay" PC port/mod, extracted from a PAL-Italian PS2 Half-Life Disc. File in lingua italiana per la mod/port...

HL Decay: German Language Pack

HL Decay: German Language Pack

Audio Pack 2 comments

German language pack for HL Decay PC Port. Viel Spaß!

Valve's official HLDM/OP4DM PC content (2023 update)

Valve's official HLDM/OP4DM PC content (2023 update)

Multiplayer Map 4 comments

Update November 17th 2023: Removed all contents that were included in the 25th anniversary update for HL1 on Steam. This is all of the official content...

Half-Life PS2 Hazard Course intro (outdated)

Half-Life PS2 Hazard Course intro (outdated)

Singleplayer Map 22 comments

Update December 2023: Archived indefinitely until I am able to update it with newer fixes. Update 2021: Updated intro map with the latest fixes and changes...

Halls2 (HL 1 DM Map)

Halls2 (HL 1 DM Map)

Multiplayer Map 1 comment

Halls2 was a Half-Life Deathmatch map created by Chris Ashton, co-founder of Turtle Rock Studios; developed while he was a member of Presto Studios. Halls2...

Valve/Gearbox HL:DM Collection (2023 updated)

Valve/Gearbox HL:DM Collection (2023 updated)

Multiplayer Map 17 comments

Update November 17th 2023: Removed all contents that were included in the 25th anniversary update for HL1 on Steam. Updated PS2 maps to reflect the latest...

HL PS2 Deathmatch maps for PC/Steam (OUTDATED!)

HL PS2 Deathmatch maps for PC/Steam (OUTDATED!)

Multiplayer Map 4 comments

OUTDATED! SEE LINK IN DESCRIPTION FOR FULL COLLECTION! Thanks to a wonderful github team (Triang3l/BS2PC on github) the Half-Life Playstation 2 port's...

Minor Half-Life Blue Shift and Decay Patches

Minor Half-Life Blue Shift and Decay Patches

HUD 13 comments

This addon contains two patches, one for Half Life: Blue Shift which fixes some HUD icons to display as the color blue as intended instead of incorrect...

Steam Splash Creator

Steam Splash Creator

GUI 9 comments

This little tool allows you to create custom menu backgrounds for your Half-Life games.

Epic huge props pack for goldsource!

Epic huge props pack for goldsource!

Model Pack 1 comment

(I do not own any of this, i just modified some of them) I hope this helps goldsource developers, but know that you can't use this for commercial purposes...

Half-Life: Decay Low-Def Pack

Half-Life: Decay Low-Def Pack

Model Pack 6 comments

A Low-Definition replacement pack for Half-Life: Deacy.

Addon Categories

Maps

- Multiplayer Map
4
- Singleplayer Map
3
- Prefab
1

Models

- NPC Model
2
- Prop Model
1
- Weapon Model
2
- Model Pack
14

Skins

- Weapon Skin
1

Audio

- Music
1
- Language Sounds
2
- Audio Pack
1

Graphics

- GUI
1
- HUD
2