The Idaho Add-on for American Truck Simulator has 5 achievements.
Complete five deliveries of potatoes from Idaho farms (requires Idaho DLC)
Complete perfect deliveries (no damage, no fines, on time) between the following cities: Kennewick - Lewiston; Boise - Twin Falls; Twin Falls - Pocatello; Pocatello - Idaho Falls. Any order or direction counts (requires Washington and Idaho DLCs)
View cutscenes from all viewpoints in Idaho (requires Idaho DLC)
Visit 45th parallel in Idaho - a halfway between the Equator and the North Pole (requires Idaho DLC)
Discover every city in Idaho (requires Idaho DLC)