GripAi GameAi GameGrip Sandbox Game API Safety API GripNews GameAi Blog
Wiki Games Cities: Skylines
Share:

Cities: Skylines

Known issues, patches, and intelligence tracked by jaffaAi

21
Issues
12
Patches
30
Clusters

🐛 Known Issues 21

AI diagnosis: network issue detected
Info
network new via web 23 May 2026
Auto-crawled: dear CO... please fix the too much assets crash bug
Critical
crash stabilised via crawl 2 Jun 2026
Auto-crawled: [FIXED] savegame crash bug
Critical
crash stabilised via crawl 2 Jun 2026
Deep-crawl: Patch Notes for patch 1.17.1-f4
High
gameplay rising via crawl 31 May 2026
Deep-crawl: Patch Notes for patch 1.17.1
High
gameplay rising via crawl 31 May 2026
Auto-crawled: Race Day Patch 1.21.1-f4 - State of Mods and Patch 101
High
gameplay resolved via crawl 27 May 2026
Auto-crawled: Patch Notes for patch 1.21.1-f7
High
resolved via crawl 27 May 2026
AI diagnosis: performance issue detected
High
rising via web 23 May 2026
Auto-crawled: Patch Notes for 1.21.1-f9
Medium
gameplay resolved via crawl 27 May 2026
Deep-crawl: Paradox "saw flaws" in Cities Skylines 2 before launch, chief executive says
Medium
rising via crawl 31 May 2026
Deep-crawl: Hotels & Retreats Dev Diary #2
Medium
rising via crawl 31 May 2026
Deep-crawl: Mountain Patch - 1.18.1-f3
Medium
rising via crawl 31 May 2026
Deep-crawl: Shops of Shibuya and Map Pack 4 are available now!
Medium
rising via crawl 31 May 2026
Deep-crawl: New Content and Anniversary Patch - 1.19.2-f3
Medium
rising via crawl 31 May 2026
Auto-crawled: Patch Notes for patch 1.21.1-f8
Medium
rising via crawl 27 May 2026
Auto-crawled: Race Day, Iconic Brutalism, and Renewed History is live!
Medium
rising via crawl 27 May 2026
Auto-crawled: Dev Diary - Race Day #3 - Free Update
Medium
rising via crawl 27 May 2026
Deep-crawl: New Cities Skylines DLC subscription leads huge ten-year anniversary plans
Medium
rising via crawl 31 May 2026
Deep-crawl: Cities: Skylines 10th anniversary will bring updates and DLC for both games
Medium
rising via crawl 31 May 2026
Auto-crawled: Unable to run after update in Debian 8 64 bit.
Medium
rising via crawl 2 Jun 2026
Auto-crawled: You can play Cities: Skylines for free this weekend, ahead of the launch of its first expansion in 2 years
Medium
rising via crawl 27 May 2026

📋 Patch Notes 12

Patch Notes for 1.21.1-f9
15 Apr 2026

🔧 Bug Fixes

  • i]This update is very minor and should not affect mods and asset functionality.[/i][/p][p][/p][list][*][p]Fixed a bug where trees placed on roads would go back to default trees when reloading the save file.[/p][/*][*][p]Fixed a bug where trolleybuses became invisible.[/p][/*][/list]
Source: steam_news
Patch Notes for patch 1.21.1-f8
v1.12
7 Apr 2026
Source: steam_news
Patch Notes for patch 1.21.1-f7
v1.21.1
17 Mar 2026

🔧 Bug Fixes

  • p][img src="{STEAM_CLAN_IMAGE}/6625556/864d14c229af3fc2b187e52c5daba9e90dd6e8f3.png"][/img][/p][p]Hi all! [/p][p]We have a small patch today with several fixes listed below.[/p][p] [/p][h3][b]Changelog:[/b]
  • b]Note:[/b] You may see a warning that mods are out of date. This is expected, and the update should not impact your mods
Source: steam_news
Race Day, Iconic Brutalism, and Renewed History is live!
10 Mar 2026

🔧 Bug Fixes

  • p][img src="{STEAM_CLAN_IMAGE}/6625556/dcef69c9f4a6a6da0cba6c6e17d779741a610bff.jpg"][/img][/p][p][/p][p]The wait is over, mayors. The anniversary content for Cities: Skylines is live now.[/p][p][/p][p]Starting today, you can hit the streets with [b]Race Day[/b], the brand-new expansion developed by
Source: steam_news
Race Day Patch 1.21.1-f4 - State of Mods and Patch 101
v1.21.1
9 Mar 2026

🔧 Bug Fixes

  • p][img src="{STEAM_CLAN_IMAGE}/6625556/577f5fab62cbd9f9f6b382bb015e889a18cc5026.jpg"][/img][/p][p][/p][p]On [b]March 10 at 10 AM CET[/b], the latest patch for Cities: Skylines will go live. Along with the new Expansion, there is also the free patch, given to and released to [b]EVERYONE [/b]who owns

✨ New Features

  • /p][/*][/list][hr][/hr][p][/p][h3][b]2. Back up your save files[/b][/h3][list][*][p]Make a backup of your most recent save file by copying it to your desktop so that you don’t accidentally overwrite it. Once your required mods have been patched, copy this file back to the previous folder, and you sh
  • /p][p]Linux:[c] $XDG_DATA_HOME/Colossal Order/Cities_Skylines/Saves[/c]
  • /p][hr][/hr][h3]
  • b]3. In-game warnings about compatibility[/b][/h3][list][*][p]The November 2022 Free Update introduced a [b]pop-up and an icon to the in-game content manager stating whether or not a mod was made for the current version of the game[/b].[/p][/*][*][p][b]The icon is advisory[/b] in nature; it just mea
Source: steam_news
Dev Diary - Iconic Brutalism by Cristolisto
9 Mar 2026

⚖️ Balance Changes

  • img src="{STEAM_CLAN_IMAGE}/6625556/bf6593dbd5d154e7e64a0a73d7773940a5dbd935.jpg"][/img][/p][p align="center"][i]The High School features a green roof terrace designed to provide students with access to outdoor space and fresh air.[/i][/p][p][/p][p]Working on the Brutalist High School was an enjoyab
  • img src="{STEAM_CLAN_IMAGE}/6625556/4d8ec00d8cb9cfc6813e11b51e5a00064879c181.png"][/img][/p][p][i]Fictional floor plan of the high school.[/i][/p][h3]
  • Testing[/h3][p]Testing the different biomes was needed to ensure the assets looked good in each one. The testing showed that brutalism looks great in both hot and cold environments. Using the assets in Snowfall needed extra work to make sure snow would not build up in certain areas. I went back to e
Source: steam_news
Dev Diary - Renewed Cities by Brum
6 Mar 2026

✨ New Features

  • /p][h2]MODELING[/h2][h3]Basic Volumes[/h3][p]Based on the moodboard, I built a simple volumetric model for each asset, studying their scale within the city, approximate footprint, and height. After placing them together, I adjusted some proportions to bring greater impact and diversity to the overal
  • img src="{STEAM_CLAN_IMAGE}/6625556/1471bf4ef8b45995dcc7328815a4c7318cadc7ef.png"][/img][/p][p align="center"][i]The Flagship Store and the University share some of the same façade elements.[/i][/p][p][/p][p]For the contemporary parts of the assets, however, I worked in a more free way due to their
  • img src="{STEAM_CLAN_IMAGE}/6625556/db6c9d03956975fe674c369c00614f9213d62d5b.png"][/img][/p][p align="center"][/p][p align="center"][i]Museum, Sports Center, Library, and University are four of the most complex models in this CCP.[/i][/p][p][/p][h3]Tris count[/h3][p]In modeling, the triangle count i

⚖️ Balance Changes

  • To conclude this Developer Diary, I've included below some screenshots of the Tempered Vanilla Theme at different times of day and night, without using color correction mods.[/p][p][/p][p]I’d like to express my gratitude for the privilege and creative freedom I was given to bring Renewed Cities to l
  • Cities: Skylines 1 Workshop: [url="https://steamcommunity.com/id/DBrum/myworkshopfiles/"]https://steamcommunity.com/id/DBrum/myworkshopfiles/[/url][/p][p]Cities: Skylines II Paradox Mods: [url="https://mods.paradoxplaza.com/authors/DBrum"]https://mods.paradoxplaza.com/authors/DBrum[/url][/p][p]Insta
  • img src="{STEAM_CLAN_IMAGE}/6625556/3f8be1d694272b92e0309baffe2d0aa5893b61ef.png"][/img][/p][p][img src="{STEAM_CLAN_IMAGE}/6625556/cdcd00a1ede236d3314296c1c491fa433a6ba79f.png"][/img][/p][p][img src="{STEAM_CLAN_IMAGE}/6625556/b159aa534dfbd5659492c391e8288ba94d0b3c6d.png"][/img][/p][p][img src="{ST
Source: steam_news
Dev Diary - Race Day #3 - Free Update
6 Mar 2026

✨ New Features

  • p]Welcome back, mayors! In this third Developer Diary, we wanted to showcase all the free content coming in the update alongside the launch of Race Day Expansion. [/p][p][/p][p]And just to clarify, you are not required to own the Expansion to enjoy these features; it will be available for everyone![
Source: steam_news
Cities: Skylines is Free to Play!
5 Mar 2026
Source: steam_news
Dev Diary - Race Day #2: Parades and other Races
4 Mar 2026

🔧 Bug Fixes

  • img src="{STEAM_CLAN_IMAGE}/6625556/13ee8c05b33bb394ec4e66300ce5cf2b6f5c692c.png"][/img][/p][p align="center"][i]Races and Parades Info View shows which buildings will not have service access during an event. [/i][/p][p][/p][p]Buildings that cannot be accessed by services during active events will b

✨ New Features

  • Time for the second Race Day Dev Diary from Tantalus! Today, we pull our motor race cars into the pit lane and cover the other types of events that can be held using the new Race Day Expansion. Parades, Running Races, and Bicycle races can all be held using the new Event Parks and Event Roads. [/p][
  • img src="{STEAM_CLAN_IMAGE}/6625556/7e42b4ffda4108eff4ba3500640937b7d50add5e.png"][/img][/p][p]Thanks for reading! In the next update, we will showcase the free content that will be released alongside the new Race Day Expansion. We have a new Fence Tool, Billboards, and an all-new Info View to share
Source: steam_news
Dev Diary - Race Day #1 - Races
3 Mar 2026

✨ New Features

  • p][b]Hello from Tantalus Media![/b] [/p][p][/p][p]We’ve been making the console ports of Cities: Skylines that were first released on Xbox One and PlayStation 4 back in 2017. Since then, we made the Remastered Editions for Xbox Series and PlayStation 5 in 2023, and have been the main developers on t
  • dynamiclink href="https://store.steampowered.com/app/4031130"][/dynamiclink] [/p][h3][b]Creating a motor race track [/b][/h3][p]Race Day centers around creating routes for different events to be held through your city. Motor Races can be held on permanent dedicated Race Roads, excluded from the traf
  • img src="{STEAM_CLAN_IMAGE}/6625556/c2756e5d70261fc8d89f66da6bc235c7c980c6ed.png"][/img][/p][p align="center"][i]Place the Race HQ to unlock Pit Garages and Stands.[/i][/p][p][/p][p]Once the Race HQ is built, it will remain “under construction” in the building info as seen below. Now that there is a
  • img src="{STEAM_CLAN_IMAGE}/6625556/4f36d3d029ef1c6896b1a0930732003c4f53cac7.png"][/img][/p][p align="center"][i]The Small Stand on the left, the Main Stand in the middle, and the Grand Stand on the right. [/i][/p][p][/p][h3][b]Races and Parades Info View [/b][/h3][p]We have added a new Info View so
  • img src="{STEAM_CLAN_IMAGE}/6625556/5f34712ae89c2aba42a61372c799233a349f8903.png"][/img][/p][p align="center"][/p][h3][b]Attractiveness [/b][/h3][p][/p][p]The Races and Parades Info View also features a tab to display attractiveness. This is useful for planning and improving the attractiveness of Ev
Source: steam_news
Lower Subscription Prices!
2 Mar 2026

✨ New Features

  • p][img src="{STEAM_CLAN_IMAGE}/6625556/d1936d11728ef4a30cf33e0a778a2c39183446e2.jpg"][/img][/p][p][/p][p]Take your city-building to the next level with unlimited access to everything Cities: Skylines has to offer. The Expansion Subscription grants you instant access to all released DLCs, every new E
  • /p][hr][/hr][p][/p][p][i]With the release of the Subscription Service for Cities: Skylines almost a year ago, we had prepared an FAQ that we now think it would be good to reiterate with some questions that were asked when we launched the Subscription Service:[/i]
  • /p][list][*][p][b][i]Why do you launch a subscription?[/i][/b][/p][/*][/list][p]We’re launching a subscription service to make our large Cities: Skylines catalog more accessible for new players that want to explore our DLCs.[/p][list][*][p][b][i]If I already have a lot of DLCs, what do I get out of
Source: steam_news

🔗 Issue Clusters 30

Cities: Skylines — unknown — Jun 2026
Issues: 1 active Confidence: 40% Last: 2 Jun 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 31 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 31 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 31 May 2026
Cities: Skylines — unknown — May 2026
Issues: 1 active Confidence: 40% Last: 28 May 2026
Cities: Skylines — gameplay — May 2026
Issues: 1 active gameplay Confidence: 40% Last: 28 May 2026