The The Holiday Express Add-on for Train Simulator Classic has 10 achievements.
Completed scenario “Training: 1. Start and Stop the Holiday Train”
Completed scenario “Training: 2. Drop off a wagon and change junctions”
Completed scenario “1] All is Quiet”
Completed scenario “2] Red hot wheels”
Completed scenario “Presents under the Tree”
Completed scenario “Milk and Cookies”
Driven the Toy Steam Train
Driven the Toy Diesel Train
Drive over 10 miles in scenarios included in this pack
Completed scenario “5] Message to Santa”