For the American Truck Simulator a new (paid) DLC has been released for Linux on Steam: "Wyoming".

Say howdy to the Equality State, Wyoming. From towering, snow-capped mountain ranges to world-famous national parks, "Big Wyoming" is a state of rugged natural beauty. Witness the Devils Tower. Haul through the cities along the I-80. Export livestock from the massive agricultural sector. Explore the Magic City of the Plains, Cheyenne. Go on a road trip to a part of the legendary Yellowstone National Park.

Whether you fancy the beautiful architecture or the general feel of rich history, you will feel like at home in Wyoming. Cowboys, trains, and wide-open natural spaces await you.
This is what you can do and see in Wyoming

Deliver to and from 10 cities and discover 14 settlements
Discover and deliver to Wyoming's important industries like coal & soda ash, farms & agriculture, railyards, and more!
Haul livestock cargo to our new cattle auction houses
Drive on the Highway to Heaven
Haul cargo on the I-80, the second-longest Interstate highway in the United States
See wildlife unique to Wyoming including bison
Visit landmarks like Devils Tower National Monument and part of the Yellowstone National Park and get bird's-eye views with many new viewpoints
Admire accurate representations of cities like Cheyenne, Casper, Jackson, Sheridan, and more!
Visit and take a rest at famous Wyoming rest stops & gas stations
Unlock Wyoming-specific Steam achievements