Half-Life Decay: Solo Mission (Demo 1)

for Half-Life

8th February 2021

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

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Reader Recommendations
Avoid It!
Think Twice
Maybe
Play It Later
Play It Now!

3 recommendations, average score: 4.67 (out of 5), standard deviation: 0.22 (what's that?)
Total Downloads
  • 578
    Overall
  • 0
    Today
  • 4
    Last 7 days
  • 35
    Last 30 days
  • 291
    365 days
Meta Review Data
Statistics based on 2 comment(s) with meta review data.

Installed:
Using Gauge: Users
Manually: 2 Users

Time Taken:
Average: 15 Hours, 23 Mins
Shortest: 0 Hours, 46 Mins by ShawnHL
Longest: 30 Hours by Hec
Total Time Played: 30 Hours, 46 Mins
If you believe this release is missing important tags, please suggest them in a comment?
Jump to a review
Play It Now!Play It Now!Play It Later

6 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!

    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.

  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.

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

  3. 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

  4. 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!

Leave a Response

Comment Formatting Guide

Well formatted comments are much easier to read. Please copy and paste the HTML Tags to use in your comment

  • HEADER: <div class="fix"></div><div class="sbe3">TEXT HERE</div>
  • BOLD: <strong>TEXT HERE</strong>
  • ITALIC: <em>TEXT HERE</em>
  • SPOILER: <span class="spoiler">TEXT HERE</span>