I subscribe to mods and they appear in the launcer as normal, but they do not download/update. I can download mods from other sources, but not directly from your steam launcher. I have tried verifying the game cache and making sure all mods are gone from the game, but still they won't download/update even given hours. NWN Mods on Steam Workshop. That's fine if I have to, just prefer not to download it all over again is all. If your mod relies on content from other mods, you can use Steam Workshop's dependencies feature. To do this, go to your workshop item's page and click 'Add/Remove Required Items'. From here, you can choose other workshop items. Steam workshop mods not downloading download Here you can browse all the availiable mods for XCOM 2, once you find something you want to download, click on it to open the mod page, with all the details about the specific mod. This will install the mod and keep it up to date when the author updates the mod.
Edit: OK, so my thread title got cut-off. Should read: 'Is it possible to Manually Install a Mod from Steam Workshop WITHOUT having to 'Subscribe' to it?'
I've always been a 'Nexus Exclusive' type-a-Dude, however I've come across a mod I want to install into my game that's seemingly only available through The Workshop.
Now with EVERY mod I install from The Nexus, I always download manually, unpack, examine the files and folder-structure to be sure it all looks good, then repack, drop into my 'Mods Folder' and then install with NMM. I like this level of control and don't like the idea of Steam installing any mod into my game automatically by 'Subscribing' to it (Christ, Steam has too much control as it is lol).
Also, I don't know if 'Subscribing' to a Steam Mod permanently links it to my account, even if I later 'Unsubscribe' to it? If so, I want no part of that.

So, is it possible to download a mod from The Workshop WITHOUT having to 'Subscribe' to it.... so I can isolate and manipulate the file, then install with NMM?
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'The game that this item belongs too does not allow downloading of its items' on https://steamcommunity.com/sharedfiles/filedetails/?id=1370035983
Guess GOG users are not allowed to use mods for that game.
'I think it's not actually possible to use a downloader for newer steam workshop stuff, because it uses the same download depot system for mods as for games. It all goes through the steam client now.
In the past the steam workshop used to use a different system where the game itself would download mods using an API, which I think is what that steam workshop downloader is trying to use. '
- GGLucas (https://steamcommunity.com/app/282590/discussions/1/405694031552470211/)
Ah ok.. so... vendor lock in completed. Congratulations you guys.
The API Steam downloader (and similar web pages and tools) uses is a web-based API - it never had anything to do with the game itself.
If you want a mod that's currently 'locked' for you because you don't have it on Steam, your options are:
1) Contact the publisher of the game and get them to unlock it (this sometimes works - Klei unlocked Invisible Inc workshop mods for example).
2) See if the mod is available elsewhere, such as Moddb or NexusMods - if not, contact the developer of the mod and get them to get their shit together.
3) Buy the game on Steam.
I suspect that Steam 'locks' the workshop by default, which is why newer games tend to often not be accessible via the downloader - meaning it's up to the game's publisher to explicitly set the workshop to be available.
Also, the connecting to other people is a big problem.
Do someone know if one can get a refund for a transfer to Steam from the Publisher?
But I learnt my lesson, I will only buy singleplayer games or games with internal multiplayer management on GOG, but never ever games that:
- need a infrastructure for mods
- have their multiplayer outsourced to the distribution platform

Considering that this thread is still relatively active.. and a top result on google as well..
The website www.steamworkshopdownloader.io has now officially been updated to support many more games.
Any game that doesn't explicitly disable 'anonymous game server downloads' should be working now.
If your game still doesn't work, see if you can get the game developer to enable this setting.
Enjoy!
-
The technicalities:
We are no longer just relying on the outdated 'Steam Web API' (also known as the ISteamRemoteStorage interface) to retrieve files. Most download tools rely on this.
Using a large pool of steam clients, we were able to automate file retrieval of games that use the newer 'User Generated Content API' (also known as the ISteamUGC interface). So many more modern games are supported by our website.
(so please be aware of any website that claims 'not to be allowed to download files'- it may actually just be lacking support for the newer API)