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Cities: Skylines Achievements

Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.

Total achievements135
Rarest rate0.000%
Ultra rare49
Last checkedSep 25, 2026
Delayed official data

Rates and award counts were last observed on Sep 25, 2026.

101
Decorator

Use the Asset Editor to make your very own asset

Very rare
4.40%last reported global rate
102
The Waters of Our Lives

Treat 20 000 000 m3 of waste water using the Inland Water Treatment Plants.

Very rare
4.50%last reported global rate
103
Beam Me Up

Build the Space Elevator Monument

Very rare
4.60%last reported global rate
104
Terraformer

Create a map

Very rare
4.70%last reported global rate
105
Postman

Deliver 1 000 000 units of Mail

Very rare
4.90%last reported global rate
106
Higher Education

Have over 70% of citizens highly educated in a city of over 10,000 people

Rare
5.00%last reported global rate
107
Are They Naked In There?

Have a Sauna in the city

Rare
5.30%last reported global rate
108
Full Capacity

Level up an Industry Area up to Level 5

Rare
5.30%last reported global rate
109
Speed up!

Boost 100 km of streets with Road maintenance service

Rare
5.30%last reported global rate
110
Metropolis

Have a population of 100,000 in your city

Rare
5.70%last reported global rate
111
Professional Dumper

Fill five landfill sites

Rare
6.30%last reported global rate
112
Earthloving City

No water or ground pollution in a city of over 10,000 residents

Rare
7.00%last reported global rate
113
City in Motion

Have 20 transport lines

Rare
7.50%last reported global rate
114
Reporting!

Check a route of a citizen

Rare
8.10%last reported global rate
115
Heavenly City

Unlock Monuments

Rare
9.30%last reported global rate
116
The Safest Town

Have 5 Police Headquarters

Rare
9.60%last reported global rate
117
Greenest City

Have no polluting industry in your city, only Office Zone and specialized zones

Rare
10.5%last reported global rate
118
Nomen Est Omen

Name a road

Rare
10.5%last reported global rate
119
Fire Watch

Have 5 Fire Stations

Rare
14.0%last reported global rate
120
SIMulated City

Have an area the size of nine map tiles

Rare
14.4%last reported global rate