Special Achievements

There are 77 Special Achievements, divided into the 'Special' and 'Seasonal' subcategories.

Collect Envelopes
Collect the envelopes that float up from the bottom of the screen in your primary station.

Collect Locomotives
This is the only series of achievements where work on lower-level achievements counts toward higher-level achievements. For example, "Loco Collector" requires 20 total unique locomotives, not 6 + 10 + 20 = 36 unique locomotives.

Seasonal
Seasonal achievements occur during holidays or events of the year, sometimes each year.