The wait is almost over, truckers! The time has come to mark your calendars and get ready to explore the rugged landscapes, wide-open roads, and unique sights of the Mount Rushmore State. We’re excited to officially reveal that the...

South Dakota DLC for American Truck Simulator
will be released on September 24th, 2026

To celebrate this milestone, we’re also happy to share the official South Dakota DLC trailer on our YouTube channel. This new video offers a glimpse at the scenery and experiences awaiting you!

So, sit back, turn up the volume, and take a look at the trailer below!

As we approach release, our teams are putting the finishing touches on the DLC and making sure everything is ready for its big debut. 

South Dakota offers plenty of variety for truckers to discover. You’ll travel through the vast Great Plains, pass through the stunning Badlands, and explore the rugged rock formations of the Black Hills while encountering iconic landmarks along the way, including the famous Mount Rushmore National Memorial, the waterfalls of Sioux Falls, the Dignity of Earth and Sky statue overlooking the Missouri River, the Corn Palace, Hot Springs, and many more.

From busy cities and industrial areas to smaller settlements and scenic stretches of highway, every route brings something different to your journey, with plenty of new ground to cover.

If you haven’t already, be sure to add the South Dakota DLC to your Steam wishlist. It’s a great way to support the project and ensures you’ll be notified when the DLC becomes available.

We’re incredibly excited to finally share the release date and trailer with you, and we can’t wait to see you hitting the roads of South Dakota for yourselves. Thank you for your continued support and enthusiasm throughout the development of this DLC.

Remember to follow us on X/Twitter, Facebook, Instagram, Bluesky, TikTok, and YouTube for all the latest news, or sign up for our newsletter to stay informed. Until the release day, keep those wheels turning, and we’ll see you on the road!

We have just shipped an updated Steam Client update to the Stable channel.

Note: This client was re-released September 6th with the following additional changes:

• Fixed a case where the steamwebhelper process could experience high CPU usage when certain events were shown in the library tab.

General

• Allow changing account while a game is running. In this case, the change account dialog shows a warning that proceeding will close active games.

• Added "Ask which account to use on startup" toggle to startup account chooser.

• Eliminated "change account" confirmation dialog in most cases. Changing account while Steam is running now brings up the account chooser directly, then restarts as the chosen account.

• Steam shutdown now waits for just-exited games to finish cloud sync.

• In the Web Browser, the left trackpad of Steam Deck/Steam Controller is now bound to scroll wheel for navigating non-Steam websites.

• Fixed issues where some Steam Workshop items were not being updated properly.

• Fixed requesting a PIN reset while signed in as a different account restarting with the wrong account signed in.

• Fixed a bug where a single pixel line would sometimes appear above the header on the home screen.

• Fixed a issue where sometimes uninstalling a game would not remove it from the download queue.

• Fixed a crash when suspending/resuming a device after a controller disconnected.

Desktop Mode

• Fixed some keys not typing properly in Steam Overlay.

Friends & Chat

• Chat messages with suspicious content will now be flagged in group chats. You can report the messages, block the sender, or dismiss the warning by activating the notice.

Steam Input

• Make controller configurations that are shared with other devices or unique to a device more clear in the configurator UI and add an option to split Steam Controller configurations so they are no longer shared with Steam Deck.

Remote Play

• Improved video color range.

• Added support for HDR streaming on Steam Deck OLED.

• Added support for AV1 video streaming when using the experimental SteamRT3 Steam Client.

• Fixed a case where streaming could show a black window.

• Fixed a bug where Remote Devices with Remote Play enabled weren't showing as Streamable.

• Fixed video frame being clipped when desktop scaling is enabled.

• Fixed framerate drop when using the unlimited bandwidth option when streaming from Steam Deck or Steam Machine.

A new Steam Client update has been released and will be automatically downloaded.

Note: This client was re-released September 6th with the following additional changes:

• Fixed a case where the steamwebhelper process could experience high CPU usage when certain events were shown in the library tab.

• Fixed Steam streaming client failing to launch on Windows 10.

General

• Allow changing account while a game is running. In this case, the change account dialog shows a warning that proceeding will close active games.

• Added "Ask which account to use on startup" toggle to startup account chooser.

• Eliminated "change account" confirmation dialog in most cases. Changing account while Steam is running now brings up the account chooser directly, then restarts as the chosen account.

• Steam shutdown now waits for just-exited games to finish cloud sync.

• Fixed issues where some Steam Workshop items were not being updated properly.

• Fixed game server browser filtering out multiple servers being hosted from a single public IP.

• Fixed an issue where sometimes uninstalling a game would not remove it from the download queue

Friends & Chat

• Chat messages with suspicious content will now be flagged in group chats. You can report the messages, block the sender, or dismiss the warning by clicking the notice.

Big Picture Mode

• In the Web Browser, the left trackpad of Steam Deck/Steam Controller is now bound to scroll wheel for navigating non-Steam websites.

• Fixed a bug where a single pixel line would sometimes appear above the header on the home screen.

Remote Play

• Improved video color range on all platforms.

• Added support for HDR streaming on Steam Deck OLED.

• Fixed a case where streaming could show a black window.

• Fixed a bug where Remote Devices with Remote Play enabled weren't showing as Streamable.

• Fixed video frame being clipped when using pipewire capture with desktop scaling on Wayland.

• Fixed framerate drop when using the unlimited bandwidth option with VA-API encoding on Linux.

Steam Input

• Make controller configurations that are shared with other devices or unique to a device more clear in the configurator UI and add an option to split Steam Controller configurations so they are no longer shared with Steam Deck.

Linux

• Fixed some keys not typing properly in Steam Overlay when in Big Picture Mode.

• Fixed a crash when suspending/resuming a device after a controller disconnected.