Half-Life Decay: Solo Mission (Demo 1)

for Half-Life

8th February 2021

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Decay: Solo Mission a ground-up port of Half-Life: Decay that allows for seamless single-player gameplay in place of the original co-op. But it’ll also have fixes, more detail, and polishing where warranted for an improved experience.

This is a demo featuring about 20-30 minutes worth of gameplay and is taken from the opening chapters Dual Access and Hazardous Course.

To see in-progress screenshots and learn more about the full version of Decay: Solo Mission, visit the ModDB page, follow the author on Twitter, and check out Mr. Floyd’s Patreon.

Basic Details
  • Title: Half-Life Decay: Solo Mission (Demo 1)
  • Filename: hl1-sp-decay-solo-mission-demo-1.7z
  • Version : 1.2
  • Size : 20.0 MB
  • Author: Mr. Floyd
  • Date Released: 1 February 2021

Download Options

Download to your HD [20.0 MB]

Manual Installation Instructions

If you require more help, please visit the Technical Help page.

  • Copy the dsm_demo_v12 folder (and if desired, the dsm_demo_v12_hd folder) into your SteamApps\common\Half-Life folder.
  • Restart or start Steam.
  • Half-Life Decay: Solo Mission (DEMO V1.2) should now be listed in your Library.

Screenshots

WARNING: The screenshots contain spoilers.

1600 x 900

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Reader Recommendations
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Maybe
Play It Later
Play It Now!
4 recommendations, average score: 4.5 (out of 5), standard deviation: 0.25 (what's that?)
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Meta Review Data
Statistics based on 3 comment(s) with meta review data.

Installed:
Using Gauge: Users
Manually: 3 Users
Time Taken:
Average: 11 Hours, 35 Mins
Shortest: 0 Hours, 46 Mins by ShawnHL
Longest: 30 Hours by Hec
Total Time Played: 34 Hours, 46 Mins
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Half-Life HL-Mods Play
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7 Comments

  1. Wesp5

    This looks okay, but there already is a remake of Decay for Half-Life in which you can even switch between the characters like in the original game!

    Reply
    1. Kevin Peeler

      The intention of this mod is to remake the original game into a single-player experience, not to do yet another 1:1 port of the game to PC.

      Reply
  2. Hec
    Play It Now!

    Well, this is a nice little Demo that indeed turns the HL Decay coop experience into a Single Player one.

    So I guess it’s worth it. Also, the whole 2-3 maps felt quite polished and professional.

    My only and definitive complaint is the length of the mod which is quite short. I mean if you took the bother of turning it into a SP why not make a proper mod and make it longer?

    That would be cool.

    Installed:
    Manually
    Difficulty Played At:
    Hard
    Playtime:
    30 Hours
    Reply
    1. A Very Purple Ostrich

      There is actually a full version of Solo Mission currently being developed. This is just a short demo

      Reply
  3. ShawnHL
    Play It Now!
    It is great!

    I found this mod very good, ideal for those who haven’t played half life decay, it’s very successful

    Installed:
    Manually
    Difficulty Played At:
    Medium
    Playtime:
    46 Minutes
    Reply
  4. HexyCyana
    Play It Later

    I very polished and fun demo. It’s going to be interesting to see how these levels will be redesigned to fit single player. I look forward to the full release!

    Reply
  5. Kryon
    Play It Later

    Pretty damn good, played it like 2 or 3 times, very fun, gotta love the map redesigns, I’m rotting to play the full version someday 😛

    Installed:
    Manually
    Difficulty Played At:
    Hard
    Playtime:
    4 Hours
    Reply

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