Mini Metro
73 Achievements
100,000 XP
Google Play
Oyster
Deliver 200 passengers in London.
500 XP
68.58%
How to unlock the Oyster achievement in Mini Metro - Definitive Guide
U2NUMB
TrueSteamAchievements
TrueSteamAchievements
Very straight forward. Make sure you are not in Endless mode. Should come within 20 minutes of playing the map. Just deliver 200 total passengers while connecting stations. Total number is displayed in the top right in real time.