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Library/Game/Cities: Skylines
Grade B18 sourcesHIS-00446

Cities: Skylines

Game · 2015 · Notable

45Editable slideCertificate

Paradox reported about 250,000 copies sold in the first 24 hours, including preorders.

Cities Skylines
PC Gamer
News - Now Available on Steam - Cities: Skylines
Paradox Interactive (publisher); Colossal Order (developer)
Cities: Skylines
Wikipedia (non-free, fair use)
CitiesSkylines
PC Gamer
How Colossal Order touched the clouds: the making and success of Cities: Skylines
PCGamesN
How are people streaming this game on Twitch? :: Cities: Skylines Discussões gerais
Steam Community

Spread Score

How it works
Reach51ContagionNo data yetBreadth40Velocity0Longevity8645

Numbers

All-time peak concurrent Steam players
60.4K
As of Mar 10, 2015 · SteamDB
Seed to peak
same day
Mar 10 ’15 to Mar 10 ’15
Platforms
4
Started on Open web
Origin
Seeded
Gaming

Mechanics

  • PairingPrimary
  • Platform jump

How it spread

Trace the origin

Paradox announced Cities: Skylines in August 2014 and sent streamers copies two weeks before its March 10, 2015 Steam release. It peaked at 60,386 concurrent players on launch day, sold 1 million copies in about five weeks and passed 12 million by 2022.

Wikipedia views · Google searchesMay ’14SepApr ’15NovDec ’16Oct ’17Nov ’18Jun ’20Jan ’22OctMay ’23PeakPressRedditTwitchOpen web
PressRedditTwitchOpen web

14 more events on this chart

Join free to see them

Timeline (17)

  1. August 2014

    Paradox Interactive precursor · Aug 14 ’14

    Paradox Interactive announced Cities: Skylines at Gamescom.[1][3]

  2. PC Gamer precursor · Aug 18 ’14

    PC Gamer covered the announcement and framed the trailer as taking aim at the latest SimCity.[3]

    CitiesSkylines

  3. Colossal Order and Paradox Interactive precursor · Aug 20 ’14

    The developers held a Reddit AMA, promoting big cities, modding and offline play.[2]

Changelogupdated Oct 16 ’26
  1. 2026-10-16Added 1 event · Added 1 source · Added 2 numbers · Score 53 → 45
  2. 2026-10-13Added: 15 events, 16 sources · Score 53
Origin
Seeded
Sector
Gaming
Region
Global
All-time peak concurrent Steam players
60.4K
As of Mar 10, 2015 · SteamDB
Evidence
Grade B

Spread the same way

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61
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55
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R.E.P.O.

Open web · 2025

54
R.E.P.O. on Steam

$25.5M revenue

New cases, every week

How the next thing spread, the week it does.

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Wikipedia views · Google searchesMay ’14SepApr ’15NovDec ’16Oct ’17Nov ’18Jun ’20Jan ’22OctMay ’23PeakPressRedditTwitchOpen web
PressRedditTwitchOpen web

14 more events on this chart

Join free to see them

  1. August 2014

    Paradox Interactive precursor · Aug 14 ’14

    Paradox Interactive announced Cities: Skylines at Gamescom.[1][3]

  2. PC Gamer precursor · Aug 18 ’14

    PC Gamer covered the announcement and framed the trailer as taking aim at the latest SimCity.[3]

    CitiesSkylines

  3. Colossal Order and Paradox Interactive precursor · Aug 20 ’14

    The developers held a Reddit AMA, promoting big cities, modding and offline play.[2]

  1. precursor · Mar 3 ’15

  2. seed · Mar 10 ’15

Join free to see the other 14 events and the full chart. Free, on every case.

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Why it worked

Do this

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  2. 2
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Pro opens the playbook, all 13 sourced numbers and 18 sources. Start with a free account.

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