Under Community Content Preferences, add this to Never filter these words:

Any content, even with visibility not set to public, is scanned by Google and Amazon image analysis services. It is evident by image blur that may appear on such submissions.

Follow the game first.

Following actually adds you to the Official Group[web.archive.org] of the game, which is now the Community Hub. If you are not a member, you cannot join the chat.


Under Followed Games, you can find all games you followed (joined the Official Groups of).

At some point, Featured Artwork Showcase was silently added. Notice Featured, it is different from the original Artwork Showcase in that it only displays one artwork. However, gaps will be present if the height is greater than the width, as usual. Just please, don't use the infamous exploit to overcome the limitation.

Steam Support contains many features to help solve your issue as well as many other pages you may find useful. In particular, Data Related to Your Steam Account (under Steam Support > My Account) links to a large selection of pages.

Since Steam Client Beta Feb 2023 versions, webkit.css that was used to replace CSS on Steam hasn't worked. Thanks to chasingEcho's workaround, CSS overrides are possible again.

1. Navigate to Steam > skins > <your_skin_name> > resource
   
2. Move or make a symbolic link of webkit.css in Steam > steamui
   
3. Edit Steam > steamui > index.html
   
4. Find </head> and right before it, insert:
   
   <link href="webkit.css" rel="stylesheet">
5. Depending on what you use, edit your Steam shortcut or launch script, and append -noverifyfiles

1. Navigate to Steam > steamui
   
2. Edit index.html
   
3. Find </head> and right before it, insert:
   
   <link href="webkit.css" rel="stylesheet">

Despite being included in formatting help for Guides, these parameters are not available to be used in Guides. However, it is evident that News and Support articles use them. It is unlikely, but possible that a future Community revision brings this feature back.

If you want to read more about inconsistent formatting on Steam, read this guide:
https://steamcommunity.com/sharedfiles/filedetails/?id=2807121939

SteamErrors.com has a documented list of error codes as well as descriptive names and useful information.

For some reason, Steam tends to randomly lose uploaded images in guides, even though they are supposed to stay for good. Attempting to reupload them results in error 29 if the latest version has the same SHA-1 hash as the uploaded image. In order to influence different file hashes in bulk without modifying any content, use this command (adjust the file extension):


Also note that uploaded images are not compressed or otherwise modified by Steam, only the file names differ. Thus, ideally, alongside an offline copy of all images, consider using Wayback Machine[archive.org] or Archive.today[archive.is] that will reliably preserve the guide.

Note: This will reduce outbound data to big data companies at the expense of some games and software being less likely to work.

GameIndustry Hosts Template[codeberg.org] is a very comprehensive list I recommend for this purpose.

Also check out the project website[gameindustry.eu] and Steam group (mainly in German) for a lot of relevant information and reviews.

Use this bookmarklet (select and drag to your bookmarks):

Make sure the account password is saved. Edit Steam > config > loginusers.vdf and under the desired account, set "WantsOfflineMode" and "SkipOfflineModeWarning" to "1".

If you don't always intend to use Offline Mode, instead of setting WantsOfflineMode, it is possible to make a separate shortcut that launches Steam with -offlinemode (only works if the client hasn't been launched yet).

For a true offline experience, use this launch option:
The ConVar net_fake_state does the same thing, but lets you change the state while the client is running (normal is the default value, use the command find net_fake_state for more).

Currently, there's a bug preventing console command arguments (prepended with +) from being executed on launch in the same manner as Source games. Luckily, a workaround has been discovered, enabling any internal command to be successfully executed on launch, but it can be done even more easily by using steam_dev.cfg instead.

Note: Some commands, like user_info, will not work, which is evident in the console:

This script will execute new line-separated console commands. Simply create steam_dev.cfg in the root directory of your Steam installation and write the commands one by one on each line.

Append a dummy command, then enclose all +commands together in quotes:

• Skip game updates without Offline Mode* (must use Small Mode, -applaunch <AppID>, steam://run/<AppID>, or desktop shortcut):
  
  @AllowSkipGameUpdate 1
• Use Steam (mostly) offline without using a firewall**:
  
  net_fake_state NoSteam
  Reset it with Normal, check the find entry for more options
  
• Automatically increase Family Library Sharing limits:
  
  library_sharing_account_max 10
• Disable metrics:
  
  @bMetricsEnabled 0
• Linux - accelerate shader pre-caching (may be slower or make it stuck at 99%):
  
  unShaderBackgroundProcessingThreads <nproc> unShaderHighPriorityProcessingThreads <nproc>

*Mostly pointless for current client versions, considering Offline Mode no longer prevents playing outdated game versions.
**-net_fake_state can be used instead, but the console command enables changing the value in real time instead of having to restart the client.

Every single profile without an avatar set uses this default "?" avatar to the point it is always the same URL (albeit load balanced between 3 or so CDNs). Any attempts to upload that image will produce a different result since the "full" version served for profiles is not original, but a compressed variant, thus using a different file hash which determines the URL.

However, it is possible to reuse any profile picture on Steam, including the default one (done on Firefox):

1. Obtain the SHA-1 hash of 32px version (also in the file name)
   
2. Open Edit Profile » Avatar in the browser
   
3. Open Web Developer Tools (Ctrl+Shift+I)
   
4. Go to the Network tab
   
5. On the avatar selection page, select a previously applied avatar and click Save
   
6. Back to the Network tab, look for this request:
   
   /actions/selectPreviousAvatar
7. Right click, then select Edit and Resend
   
8. In the body field, look for:
   
   Content-Disposition: form-data; name="sha" 0000000000000000000000000000000000000000
9. Edit the 40 character file hash to the SHA-1 hash of the desired avatar
   
10. Click Send

Press Shift once. It should unfreeze and be usable as normal.

Click on the combo box, then use up/down arrow to navigate and select an item.

In February of 2023 (and again in April) the client finally received a fix that enabled smooth scrolling. However, it still uses an outdated Chromium version (85) which had the slow scrolling issue. It has been fixed in Chromium 109, so until they sort that out, there's a dirty hack called IMWheel[wiki.archlinux.org] you can use.

~/.imwheelrc preset for Steam:

Considering that IMWheel handles all events, even with modifier keys, this is not a good solution for long-term use. Revert as soon as the core issue is fixed.

Set the environment variable for the game:
If unsure, use this instead and ignore the invalid architecture error:

Note: This is pointless for the most part, considering it is hardly different compared to launching games directly (without Steam client), meaning many features won't be present, and it may require the full client to be running.
Note: Launching Steam client with -textclient, other than requiring libraries to be manually imported, is no different from using SteamCMD, and moreover, will break your installation!

The reason why app_launch always fails for multi-platform games is that every launch entry for every OS is in a list, and selecting the first one (which happens when LaunchOptionIndex is unset) tends to be for the wrong OS since app_launch doesn't filter by OS.

Also, if a full Steam client isn't installed, launching requires some binaries to be present in SteamCMD working directory. Arch Linux example (steamcmd AUR package):

app_launch command must be specified along with LaunchOptionIndex parameter, corresponding to app_info_print output ("<AppID>" > "config"):

Example of proper use of the app_launch command with the default Linux launch options:

Valve hasn't ported all Source/Source 2 tools to Linux/macOS yet, even if some are based on Qt and other cross-platform libraries.

In order to work around the unavailability, you may derive binaries from another Source/Source 2 Windows game build, provided that the engine branch is the same or similar enough.

Otherwise, download Windows binaries separately from the game installation:

1. Go to the SteamDB[steamdb.info] page of the desired game
   
2. Go to the Depots page
   
3. Find the depot containing Windows binaries and copy its Depot ID
   
4. Run this command:
   
   steam steam://open/console
5. Enter this command in the console:
   
   download_depot <appid> <depotid>
   — <appid> being the game's App ID and <depotid> being the ID from earlier
   
6. Wait for the download to finish, find the binaries in the directory printed in the console
   
7. Use Wine to run the desired tool

Note: Since all Valve projects are statically linked, the working directory must be correctly set before using the desired tool.

• Links to copy guide section URLs by 0_o
  
• Gem value bookmarklet for Community Market[gaming.stackexchange.com]
  
• A Collection of Steam Tools: many more tools you may be familiar with

• My own Steam-related guides (shameless plug)
  
• Upload Transparent Images to Steam (warning: unnecessarily bloated)
  
• Steam Level XP Table! (warning: ads)
  
• How to block fake servers like Fastpath (for de-cluttering Steam server browser)