Grotthuss–Draper law
65.4%
Earn 5 stars
Train Valley World Achievements
29 achievements
Maxwell–Heaviside equations
49.1%
Earn 10 stars
Bessel's parallax
31.5%
Earn 20 stars
Burnham's Nebula
21.8%
Earn 30 stars
The Harvard Computers
9.0%
Earn 60 stars
Coal
58.9%
Complete 3 levels
Lumber
42.2%
Complete 6 levels
Iron
30.2%
Complete 9 levels
Steel
24.3%
Complete 12 levels
Make Way
5.0%
Demolish a building worth 100 000
Mycologist
3.1%
Demolish 10 mushrooms
Unabridged
8.7%
Spend over 300 000 on a bridge
On second thought
15.1%
Downgrade a locomotive
Eisenbahnangst
70.2%
Complete a level using the lowest tier locomotives only
Talent scout
27.1%
Have 5 Specialists hired at the same time
Spend after saving
14.1%
Spend 47 Industry points
Strategic reuse
5.2%
Have 6 Industry points refunded to you
Industrious and frugal
4.9%
Have 102 346 refunded to you
Waste not
62.8%
Empty a full train
100% completion run
70.0%
Complete every delivery quest on a level
Railway networking 101
29.3%
Finish a level with at least 19 stations built
Well begun
28.4%
Use 21 Construction sites
Triplo
28.1%
Spend 30 real time minutes in 4X speed mode
Service disruption
57.5%
Spend 5 consequent minutes of real time paused
Madagascarophis lolo
3.1%
Have 7 trains ghosting at the same time
Rail
13.8%
Complete 20 levels
Greenlight
21.2%
Complete 1 level in Signal mode
Silver Signal
2.6%
Complete 20 levels in Signal mode
Gold Signal
2.1%
Complete 20 levels with 3 stars in Signal mode