[section]Request Format[/section] The public Steamworks Web API is accessed by making HTTP (port 80) or HTTPS (port 443) requests to [code-inline]api.steampowered.com[/code-inline]. If you're a publisher, then Steam also provides a partner-only Web API server hosted at [code-inline]https://partner.steam-api.com[/code-inline]. …

[section]Example Query[/section] The following example retrieves the 3 most recent news entries for Team Fortress 2. The request specifies that the response should be returned as JSON and includes: a required appid parameter (Team Fortress 2's AppID is 440), and an optional count parameter to limit the number of results returned. …

[/list] [/list] [/list] [b]Example Response:[/b] [code=json] { "response": { "result": "OK", "params": { "count": 4, "orders": [ { "orderid": "1233", "transid": "1234567890123456788", "steamid": "76561197972751825", "status": "PartialRefund", "currency": "USD", "time": "2024-01-23T18:30:00Z", "country": "US", "usstate": "WA", "timecreated": "2024-01-23T18:15:00Z", "items": [ { "itemid": 100, "qty": 1, "amount": 99, "vat": 9, "itemstatus": "Refunded" }, { "itemid": 101, "qty": 1, "amount": 1299, "vat": 116, "itemstatus": "Succeeded" } ] }, { "orderid": "1234", "transid": "1234567890123456789", "steamid": "76561197972751825", "status": "Failed", "currency": "USD", "time": "2024-01-23T18:40:30Z", "country": "US", "usstate": "WA", "timecreated": "2024-01-23T18:39:00Z", "items": [ { "itemid": 100, "qty": 1, "amount": 99, "vat": 9, "itemstatus": "Failed" } ] }, { "orderid": "1235", "transid": "1234567890123456790", "steamid": "76561197972751825", "status": "Succeeded", "currency": "USD", "time": "2024-01-23T18:40:40Z", "country": "US", "usstate": "WA", "timecreated": "2024-01-23T18:39:30Z", "items": [ { "itemid": 101, "qty": 1, "amount": 1299, "vat": 116, "itemstatus": "Succeeded" } ] }, { "orderid": "1236", "transid": "1234567890123456791", "steamid": "76561197972751825", "status": "Chargedback", "currency": "USD", "time": "2024-01-23T19:55:00Z", "country": "US", "usstate": "WA", "timecreated": "2024-01-23T18:40:00Z", "items": [ { "itemid": 102, "qty": 1, "amount": 999, "vat": 89, "itemstatus": "Chargedback" } ] } ] } } } [/code] [section=GetUserAgreementInfo]GetUserAgreementInfo[/section] [code=http]GET https://partner.steam-api.com/ISteamMicroTxn/GetUserAgreementInfo/v2/[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Required[/th][th]Description[/th][/tr] [tr] [td][b]key[/b][/td][td]string[/td] [td]✔[/td] [td]Steamworks Web API [url=https://partner.steamgames.com/doc/webapi_overview/auth#publisher-keys]publisher key[/url] with [b]Microtransaction[/b] permissions.…

[/list] [/list] [/list] [b]Example Response:[/b] [code=xml] <response> <result>OK</result> <params> <state>WA</state> <country>US</country> <currency>USD</currency> </params> </response> [/code] [section=InitTxn]InitTxn[/section] [code=http]POST https://partner.steam-api.com/ISteamMicroTxn/InitTxn/v3/[/code] [table] [tr][th]Name[/th][th]Type[/th][th]Required[/th][th]Description[/th][/tr] [tr] [td][b]key[/b][/td][td]string[/td] [td]✔[/td] [td]Steamworks Web API [url=https://partner.steamgames.com/doc/webapi_overview/auth#publisher-keys]publisher key[/url] with [b]Microtransaction[/b] permissions.…

This is the best choice for highly competitive games (such as Dota 2) or games with persistent servers that stay around after players leave (such as Team Fortress 2). [section]Steam Server Browser[/section] A large part of the game server experience on Steam comes from the unified server browser. …

This is the best choice for highly competitive games (such as Dota 2) or games with persistent servers that keep running even after all players leave (such as Team Fortress 2). You can read more about it in the [doclink=features/multiplayer/game_servers][/doclink] documentation.…

This is the approach used by older Valve Source games such as Team Fortress 2 and Counter-Strike: Source. If you choose OpenGL then we recommend using the core functionality in OpenGL 3.0 for your game. …

The following libraries provide support for other aspects of game development: [list] [*] [url=http://www.freetype.org/index.html]FreeType[/url] - font rendering (both vector-based and bitmap fonts) on Linux [*] [url=http://www.freedesktop.org/wiki/Software/fontconfig]Fontconfig[/url] - configuring and customizing font access [*] [url=http://www.radgametools.com/miles.htm]Miles Sound System[/url] - a middleware sound engine for Linux development [*] [url=http://www.radgametools.com/bnkmain.htm]Bink Video[/url] - a video codec designed for game developers [*] [url=http://www.webmproject.org/]WebM[/url] - an open media file format; used for recording Team Fortress 2 video instead of QuickTime. [/list] [section]Linux Runtime[/section] Titles with native Linux support may select a specific version of the Steam for Linux runtime to execute under. …

This can be found by clicking on your wifi network in headset under [b]Quick Settings[/b] or [b]Steam Settings > Internet[/b] (Example: 192.168.4.80). …

For each badge (Level 1-5 and Foil), please provide the following images: [list] [*]80x80px PNGs with a transparent background (shadow may be included). [*]Unique title for each badge [/list] [docimg=badge1.png]badge1.png[/docimg] [docimg=bg3.png]bg3.png[/docimg] [subsection=emoticons]Emoticons[/subsection] Crafting a badge also grants a single custom emoticon which can be used in chat on Steam, or traded on the Steam Marketplace. …

This file should contain the following text: [code] @LocalContentServer YourWebServerName [/code] Examples: [code] @LocalContentServer localhost @LocalContentServer "127.0.01:8080" [/code] [list] [*] Either the server IP or server hostname can be used. [*] If you need to specify another port then 80, it must be "ip:port" in quotes [*] Don't add "http://" in front, HTTPS is not supported [/list] Note: The default location of the Steam executable is: [list] [*] [b]For Windows[/b]: [code]C:\Program Files (x86)\Steam\[/code] [*] [b]For macOS[/b]: [code]Steam.app/contents/macOS/[/code] [*] [b]For Linux[/b]: [code]~/.local/share/Steam/[/code] [/list] [b]Note[/b] As of September 2026, Steam will begin requiring newly-created "local" app branches to be [b]password-protected[/b]. …

NVIDIA GFN FAQ https://www.nvidia.com/en-us/geforce-now/faq/ [b]What are the supported countries for GeForce NOW?[/b] GeForce NOW is currently available in over 80 countries from North America, Europe, and Asia Pacific. Visit this knowledge base article [url]https://nvidia.custhelp.com/app/answers/detail/a_id/5023[/url] for a list of supported countries [b] How do I sign up as a customer to play my supported Steam games on GeForce NOW?…

[/td][/tr] [tr=k_EResultContentVersion][td][b]k_EResultContentVersion[/b][/td][td]47[/td][td]A Version mismatch in content transmitted within the Steam protocol.[/td][/tr] [tr=k_EResultTryAnotherCM][td][b]k_EResultTryAnotherCM[/b][/td][td]48[/td][td]The current CM can't service the user making a request, user should try another.…

[/td][/tr] [tr=k_EResultDisabled][td][b]k_EResultDisabled[/b][/td][td]80[/td][td]The requested service has been configured to be unavailable.[/td][/tr] [tr=k_EResultInvalidCEGSubmission][td][b]k_EResultInvalidCEGSubmission[/b][/td][td]81[/td][td]The files submitted to the CEG server are not valid.…

These files will not be downloaded by users through the Workshop, but will be viewable by the community to rate. This is the implementation that Team Fortress 2 uses. [/list] [/list] [*] Register a call result handler for [apitype]ISteamUGC::CreateItemResult_t[/apitype] [*] First check the [code-inline]m_eResult[/code-inline] to ensure that the item was created successfully. [*] When the call result handler is executed, read the [code-inline]m_nPublishedFileId[/code-inline] value and store for future updates to the workshop item (e.g. in a project file associated with the creation tool). [*] The [code-inline]m_bUserNeedsToAcceptWorkshopLegalAgreement[/code-inline] variable should also be checked and if it's [b]true[/b], the user should be redirected to accept the legal agreement. …

[code=cpp] "workshopitem" { "appid" "480" "publishedfileid" "5674" "contentfolder" "D:\\Content\\workshopitem" "previewfile" "D:\\Content\\preview.jpg" "visibility" "0" "title" "Team Fortress Green Hat" "description" "A green hat for Team Fortress" "changenote" "Version 1.2" } [/code] Notes: [list] [*] The keys map to the various ISteamUGC::SetItem[...] methods. …

[/i]) [*][b]Text Legibility[/b]: Interface text must be easily readable at a distance of 12 inches/30 cm from the screen. In other words, the smallest on-screen font character should never fall below 9 pixels in height at 1280x800. ([i]Recommendations: We expect Steam Deck will be used in a wide variety of lighting and physical configurations, such as being connected to a TV, monitor or keyboard. …

[/b] The best way to contact us with questions about shipping your mod is by filing a support ticket on https://help.steampowered.com. [/list] [section=TF2FAQ]Team Fortress 2 Mods FAQ[/section] [list] [*] [h4]Q. Where do I get the TF2 SDK?[/h4] [b]A.[/b] The TF2 SDK is part of the Source SDK 2013, which is available on [url=https://github.com/ValveSoftware/source-sdk-2013]Github[/url] or via [url=steam://rungameid/243750]Steam[/url] . [*] [h4]Q. …

. [*] Documentation is available on the [url=https://developer.valvesoftware.com/wiki/KeyValues]Valve Developer Community wiki[/url] and on the [url=https://wiki.teamfortress.com/wiki/WebAPI/VDF]Official Team Fortress 2 wiki[/url]. [*] Arrays in the data are represented as a VDF array with the name of the type of the objects in the array, with a VDF array being an object with each item being prefixed with its numeric key as a quoted string. [*] Null is represented as an empty string. [*] [b]Example[/b]: [code=nohighlight] "appnews" { "appid" "440" "newsitems" { "0" { "gid" "1904306376092568991" "title" "Prince of Prolander Event " "url" "http://store.steampowered.com/news/externalpost/tf2_blog/1904306376092568991" "is_external_url" "1" "author" "" "contents" "<a href=\"http://rgl.gg/default.aspx\"><img src=\"https://steamcdn-a.akamaihd.net/steam/news/29555/prince.png?…

. [*] [code-inline]price: 1;USD100[/code-inline] ($1.00 in US Dollars) [*] [code-inline]price: 1;USD100,EUR080[/code-inline] ($1.00 in US Dollars or 0.80 in Euro) [*] [code-inline]price: 1;USD100,EUR080;20130607T080000Z-20130606T080000ZUSD50,EUR40[/code-inline] ($1.00 in US Dollars or 0.80 in Euro except from 6/6/2013 on when the price is reduced to $0.50 / 0.40) [*] [code-inline]price: 1;USD100,EUR080;20130609T080000Z-20130606T080000ZUSD50,EUR40[/code-inline] ($1.00 in US Dollars or 0.80 in Euro except from 6/6/2013 until 6/9/13 when the price is reduced to $0.50 / 0.40) [/list] [subsection=SellingBundles]Selling Bundles[/subsection] Bundled items can be listed for sale in the Item Store. …

. [*]Avoid too many mid-low frequencies and consider a HPF starting around 40-80Hz. [*]Consider adding fades at the start and finish of the audio file to avoid any click or hard cut at the end of the startup video. …

You can start off with a basic uploader that just asks the item-maker to select a .zip file and a preview image, or you can build more validation into your submission path. For example, Team Fortress 2 started with just a submission form that asked the item author to pick a .zip file and preview image. But as we iterated on the process, we added a test environment and validation to make sure that the file that was submitted to the Workshop would be easier to integrate into the game. …

Indeed, the Steamworks [api]ISteamMatchmaking[/api] and [api]ISteamMatchmakingServers[/api] APIs have this property, as do some of our own games, such as Team Fortress 2. In this case, you can use the Steamworks "Fake IP" system. A FakeIP is an IP that "looks" like a valid IPv4 address for most purposes, but comes from a reserved address space that is not used on the Internet. …

. [*] Run the following steamcmd: [code-inline]set_steam_guard_code <code>[/code-inline] [*] Re-Attempt login from steamcmd: [code-inline]Steam>login <buildaccount> <password>[/code-inline] [/list] [h4]General Troubleshooting for Download Issues[/h4] [list] [*] Restart computer, modem, router, etc. [*] Verify firewall settings. The new system requires port 80 (HTTP) and all other Steam ports, listed [url=https://support.steampowered.com/kb_article.php?ref=8571-GLVN-8711]here[/url]. [*] Temporarily disable local Anti-Virus or Spam-Blocker programs. [*] Check the Steam download region under [b]Settings[/b]->[b]Downloads[/b]. …

If you include the port, IPv6 will be surrounded by /// brackets, e.g. [::1:2]:80. Your buffer should be at least k_cchMaxString bytes /// to avoid truncation inline void ToString( char *buf, size_t cbBuf, bool bWithPort ) const; /// Parse an IP address and optional port. …