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Buy Cities Skylines Mass Transit Steam Key

Q: Why is the Steam Key of Cities Skylines Mass Transit safer than the account format?

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Cities Skylines Mass Transit to your game library. The account format requires more complicated steps and is more prone to errors during activation.

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Cities Skylines Mass Transit Steam Key: compare prices (August 2026)

A Cities Skylines Mass Transit Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €4.24 at Gamivo · 13 verified stores, 19 offers in stock · Updated 00min ago.

Steam Key

Cheapest

€4.99 €4.24 -21% Save €1 vs GamesPlanet View deal

GCDKGamivo

-15%

Copied!

Steam Key

Official store

€5.38 View deal

No code available

See 19 keys from €4.24

Historical prices

Medium price

Current minimum price

Cities Skylines M… prices: 12-month price history →

Official stores are authorized distributors, and while their prices may be higher than Key stores, their reliability is 100%.

“Choose it if you don’t mind the price difference”

Key stores are resellers and marketplaces, which is why they are usually cheaper than official stores. We only show the best ones, so you can rest assured. Plus, we offer our guarantee against any issues.

“Choose it if you’re looking for a great discount”

Editions Standard

Format Steam Key

Global EU US UK

Official stores 2 stores Hide Accounts

Resellers

No payment fees With payment fees Basic price Fees incl.

Promoted store

Difmark Digital Keys 4.1 (14.2k)

Coupon

Gocdkeys -16%

Copied!

€6.30 €5.29

Store Difmark Digital Keys

Region Global

Product type Steam Key

Edition Standard

Fees +€0.44

Gamivo
HRKGame
Eneba
Kinguin
Driffle
K4G
Instant Gaming
Cdkeys Com
YUPLAY
G2A

Gamivo 3.8 (49.7k)

Subscription from 2.01€/month

€4.99 €3.94 How to get this priceHow to get

Store Gamivo

Region Global

Product type Steam Key

Edition Standard

Fees +€0.70

Gamivo 3.8 (49.7k)

Subscription from 2.01€/month

€5.13 €4.36 How to get this priceHow to get

Store Gamivo

Region Europe

Product type Steam Key

HRKGame 4.2 (29.7k)

€5.02 €4.42

Product type Steam Key

Eneba 4.4 (312.9k)

€4.92 €4.43 How to get this priceHow to get

Store Eneba

Region Global

Product type Steam Key

Edition Standard

Fees +€0.38

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€4.93 €4.44 How to get this priceHow to get

Store Kinguin

Region Global

Product type Steam Key

Eneba 4.4 (312.9k)

€4.94 €4.45 How to get this priceHow to get

Store Eneba

Region Europe

Product type Steam Key

Edition Standard

Fees +€0.38

Driffle 4.4 (9.2k)

Subscription from 4.99€/month

€4.97 €4.47

Product type Steam Key

K4G 4.3 (17.6k)

€5.23 €4.50

Product type Steam Key

Edition Standard

Fees +€0.58

Driffle 4.4 (9.2k)

Subscription from 4.99€/month

€5.12 €4.61

Product type Steam Key

K4G 4.3 (17.6k)

€5.44 €4.68

Product type Steam Key

Edition Standard

Fees +€0.60

Instant Gaming 4.7 (833.8k)

No code available

€5.39

Store Instant Gaming

Region Global

Product type Steam Key

Edition Standard

Fees +€0.11

Cdkeys Com 4.8 (224.4k)

Product type Steam Key

Eneba 4.4 (312.9k)

€7.00 €6.30 How to get this priceHow to get

Store Eneba

Region US

Product type Steam Key

YUPLAY 4.8 (2.5k)

Product type Steam Key

G2A 4.0 (346.2k)

€6.85 €6.17 How to get this priceHow to get

Store G2A

Region Global

Product type Steam Key

G2A 4.0 (346.2k)

€6.86 €6.24 How to get this priceHow to get

Store G2A

Region Europe

Product type Steam Key

Edition Standard

Fees +€0.02

Official stores

GamesPlanet
GamersGate

GamesPlanet 4.3 (629)

No code available

€5.38

Store GamesPlanet

Region Global

Product type Steam Key

GamersGate 3.6 (527)

Product type Steam Key

Edition Standard

Fees -

How much does Cities Skylines Mass Transit for PC cost right now?

Cities Skylines Mass Transit for PC starts at €4.24 at Gamivo, a Steam key.

We have never recorded it cheaper than this.

That €4.24 already includes the GCDKGamivo coupon, so apply it at checkout or the store will show you a higher price.

With 19 offers across 13 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.

Is it worth buying the Steam Key for Cities Skylines Mass Transit now or waiting?

That €4.24 key is expensive for what it usually costs.

Those €4.24 are 16% above what it usually costs, measured on the store price.
13 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
Across the 2,611 days we have tracked it, it has only been pricier than today on 956 days. The lowest it has ever cost is €1.82.

If you do not need it today, waiting pays off: we have seen it at €1.82 and right now you would pay €3.10 more. We will tell you the day it drops.

Worked out from 4,406 daily records of the Steam Key for Cities Skylines Mass Transit across 28 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Can you activate Cities Skylines Mass Transit in US?

14 of the 19 offers work on US — the Global ones plus the ones issued for your own region.

Is Cities Skylines Mass Transit worth it?

Critics put it at 73 out of 100, though there are only 12 reviews published so far.

Cities Skylines Mass Transit is the next DLC for the fantastic building and city management game Cities Skylines, whose launch date is May 18 on the Steam platform. Do not forget that being a DLC it is necessary that you have the base game to enjoy all the extra content of this expansion.

Mass Transit focuses on implementing improvements and new technologies on the mobility of our citizens. Now the citizens of our cities will be able to cross the urban centers with speed and style. With this new DLC, they will be able to move through the water, the peaks of the high mountains, and even through the sky thanks to the addition of ferries, monorails, cable cars and dirigibles. So we will have many more types of constructions and we will carefully plan everything we´ll build, since at some point we´ll must implement these improvements in mobility to our cities.

These new additions will not only bring improvements in the lives of our citizens, but also we will obtain a succulent and constant flow of income. We will also have new challenge maps with challenges centered on the solution of the traffic problem and the addition of new traffic systems.

A new world opens up before us with this new DLC as it will increase exponentially the ways of planning the constructions and the possibilities of buildings. Our cities in Cities Skylines will never be the same again!

Most common FAQs when buying Cities Skylines Mass Transit for PC in digital format:

It is a key that will allow you to download the game Cities Skylines Mass Transit on your PC from official download platforms.

As of 24/08/2026, in United States, the best price we have found in our selection of online stores that include the key for Cities Skylines Mass Transit on PC is €4.24.

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Cities Skylines Mass Transit to your game library. The account format requires more complicated steps and is more prone to errors during activation.

The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Cities Skylines Mass Transit, and they will provide a new key. You can also contact us, and we’ll help you out.

Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.

At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

Gocdkeys - Transparency and credibility

At GOCDKEYS we display real prices from 49 verified stores. Some links may be affiliate links, which help us keep the service running at no extra cost to users. Prices and conditions are always exactly the same as those offered by the store. All stores go through our own store verification methodology, so you can buy with complete confidence.

If you have doubts before buying, we explain why CD keys are legal and break down the most common myths and facts about digital games, so you can make your decision with clear and up-to-date information.

More than 4.5M users in 14 years have trusted us to find the best deals — Trustpilot 4.1/5 ★
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We track prices every 2 hours and sort by final cost - Last update: 2026-08-24 08:05:25

What do our users think of Cities Skylines Mass Transit for PC Digital?

5/5 (1 Comments)

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Cities Skylines Mass Transit

Is it worth it?

Critics Rating

Player Rating

Fair

5.0/5 1 ratings

What the press says

Game Revolution

Colossal Order has given the Cities: Skylines community yet another exciting expansion with Mass Transit. While the new content may not be available immediately in... Read more

The Digital Fix

Whilst there's not a lot added here, what there is makes Cities: Skylines an even more complete city building simulation. Read more

Cubed3

The detail to which you can customise the cities in here is astounding, and Mass Transit is not only adding more to the plethora of... Read more

TechRaptor

Cities: Skylines - Mass Transit adds more than enough new content to make you want to return to the game. The new transport hubs are... Read more

GameWatcher

The improved road and transport infrastructure the content allows for is pretty great but like the other DLC's, the content seems lacking in quantity. Read more

Cubed3

The Cities: Skylines - Mass Transit DLC is unfortunately not the most essential DLC for those who are wanting to add more to their... Read more

Cubed3

As with the DLC before it, Mass Transit brings very little new to the table, feeling less like an expansion and more like a minor... Read more

GuyLogicGaming

TheSixthAxis

On the whole Mass Transit is a more than welcome set of additions and improvements to Cities: Skylines, but there's just that nagging feeling that... Read more

The Games Machine

Mass Transit is an excellent expansion, with just one problem: the content isn't that much. Everything else improves over the original, adding depth to an... Read more

Hu3br

A solid expansion for those who want to beautify their city with new transport options, but lacks more engaging content and challenging scenarios. Read more