Achievements can be found under the Achievement icon Button-Achievements-Small on the main game menu. They are goals toward which you work, even if you are not aware of it. Most achievements have 4 levels, with each level a bit tougher than the previous one. Achievements that have a level requirement higher than the player's current level will be hidden.

Shop Suggested Achievements

The six main categories of Achievements are:

Name Contents
Icon Achievement Suggested Suggested The six achievements closest to being completed
Icon Shop Special Special General gameplay and Seasonal achievements
Icon Shop Loco Trains Dispatching, delivering, unloading, collecting trains
Icon Achievements Developer Developer Buildings, decorations, spending resources
Icon Achievements Social Social Neighbors, flags, gifts
Icon Achievements Themed Themed Themed locos, wagons, and buildings
Icon Achievements Record Breakers Record Breakers Send International Trains

NOTE: This Category should only be applied to content pages for the achievements, and not to individual items.