You can keep up with the project on Tumblr and Twitter, as well as support the project via Patreon
Half-Life Decay: Solo Mission is a new, upcoming port of the PS2 exclusive Half-Life expansion "Decay", with the goal of rebuilding the game to work as a single player experience, thus allowing anyone to play through the entirety of Decay without the need for setting up a private server, and all the headaches that come with it.
Along with allowing anyone to play Decay without needing a server, this port will also rework the visuals to make them more consistent with the original Half-Life, giving every map in Decay an extra bit of polish in the process, and all without making any major alterations to the original game.
Q: Will Dr. Colette Green make an appearance?
A: Colette Green won't be appearing in Decay: Solo Mission in any form whatsoever. As far as I'm concerned, Dr. Green exists solely as an avatar for the second player, and as a character has no real impact on the lore or any presence outside of Decay, unlike Dr. Cross who, alongside inventing the HEV suit, also makes cameos in every HL1 game and expansion.
Q: Will the source code/map sources be made public?
A: Yes! Nothing is available right now, as the contents of the mod are constantly changing. However, once the full mod is released, all of the source files will be made available for anyone to use as they wish!
Q: Will this mod explain what happened to the main characters of Decay after the ending?
A: It won't. The way I see it, any attempt by myself, or anyone else besides Valve and Gearbox, to add on to the story would be pure fan-fiction, and thus wouldn't have a place in Solo Mission.
Q: Will you be able to use the original Half-Life models?
A: Yes! One of the goals of Solo Mission is to make the aesthetics match the original release of Half-Life and it's expansions, including full compatibility with both the original models, and their original HD variants.
Q: Will Solo Mission include any of the cut content from Decay?
A: It won't. The main goal of Solo Mission is to simply make Decay into a single player experience, and to give it a bit of polish along the way. If I attempted to start adding new chapters to it, it'd stop being Decay and turn into something else entirely.
Q: Will the mod feature a co-op mode?
A: It won't. All of Decay is being re-worked in order to suit single-player gameplay. The amount of work to make the mod co-op would not only require re-reworking all of the levels, but would defeat the point of the entire project.
Q: Will the bonus mission, "Xen Attacks", be present in Solo Mission?
A: Yes! Just as it was in the original Half Life: Decay, Xen Attacks will be available as a bonus, unlockable mission, polished and re-created with the same level of care that's being given to the main game.
For those struggling with any particular puzzles, or who just want to have a look at the mod itself, have a look at the official Walkthrough!
Note: This port of Decay has no affiliation with the existing PC port, but it is utilizing some of it's publicly available source code. All maps and models being used in Half Life Decay: Solo Mission are based on assets pulled directly from the PS2 disc itself via Supadupaplex's PS2 Half-Life tools.
Artwork by Decepticoin, who's artwork can be found on Twitter and Deviantart.
Not much to say for this update, so I'll keep this intro short. The first two preview images were actually posted on other social media, and I'd decided it was time to share them here as well as I'm sure there's plenty of you who don't bother with things like Twitter.
These first two images were posted there earlier this year, work in progress shots taken from Solo Mission's eighth chapter, "Intensity".
That being said, for those of you who have been keeping tabs on social media, don't worry, I have something new for you as well. These next two previews are fresh off the presses, a few work in progress shots taken from Solo Mission's fourth chapter, "Resonance".
And finally, one last development that may interest you. As most of you are probably aware, Half-Life's gone through some changes as of late thanks to the games 25th Anniversary update! One of these changes included re-introducing the original animated menu that Half-Life used to have back in it's pre-steam days, and since the main goal of this project is to match the feel of the official releases, it only made sense to begin "modernizing" Solo Mission's menu to match! Expect to see this included in the official demo in the near future.
That about wraps up this media update. As always, feel free to check in on Twitter for more regular updates about the mod, and if you wanna support the mod in any way, you can always check out the Patreon, or snag yourself an official Decay: Solo Mission poster!
-Mr. Floyd
A few WIP shots from Solo Mission's 6th chapter, "Code Green", and a brief introduction to the team's newest member!
A few WIP shots from Decay's fifth and seventh chapters, as well as one major announcement about the project's future.
A few new WIP pics taken from Solo Mission's fourth chapter, "Resonance", as well as a brief status update about the future of Patreon content!
Sharing some of the work that's gone into Chapter 5 of Decay: Solo Mission.
NOTICE: This mod is designed to run with the Windows version of Half-Life currently available on Steam. Running different versions of Half-Life, such...
Originally made for my Extended High Definition Pack, this addon adds new HD models for Gina Cross (made by Dakashi_Val) and improved HD weapons. Also...
NOTICE: This mod is designed to run with the Windows version of Half-Life currently available on Steam. Running different versions of Half-Life, such...
they went back in time and killed colette green as a baby ðŸ˜ðŸ˜ðŸ˜
The charging and health stations from the PS2 version would be a good addition to the HD models option.
(buried)
Sorry, but no Colette, no go.
Alright I have a few questions for when it's released
1. Is it going to be available on the xash3d engines especially an android version it'd be great
2. Can I play it with hd models
Looking good :)
I suggest making an addon for compatibility with Mmod, that would be cool
Hot take, Mmod isn't that great.
If another modder wants to do that when the source code for D:SM is released, they're more than welcome to. That said, I already have a lot on my plate with this as-is, so I won't be adding more extra features, especially ones that don't align with the other Half Life 1 PC games
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Do you know when we would be getting any new playable demos or news on a release date?