Cities: Skylines II — patch notes and updates
Stored observation / content update:
Dated developer announcements recorded from Steam. Open the source for the complete update.
| Update | Date | Excerpt / source |
|---|---|---|
| Spring Cleaning - Patch 1.5.7f1 | 2026-04-29 | Hello Mayors!Patch 1.5.7f1 is now live, and we’re excited to get your feedback. As always, if you have anything that you would want to report after playing 1.5.7f1, then you can submit a bug report over on our forum! Big changes are also coming to Paradox Mods! Previously, all actions in the in-game Paradox Mods required the mod downloads to be completed before moving on to the next step, like browsing and adding more mods. In this patch, this behaviour is changed so that actions and mod downloads are no longer dependent on each other. The tracking of mod downloads has also been made more precise and consistent, with the addition of parallel |
| Cities: Skylines II Merch is here! | 2026-04-27 | Cities: Skylines II merch is here! We teamed up with @tilt_gaming to make it happen. Mouse pads and phone cases are available now! 👉 https://pdxint.at/48ZQ8zv |
| City Corner #5 - Spring Cleaning | 2026-04-24 | Hello, Mayors!Now that the snow has finally melted from Tampere, Finland, it is officially time to introduce you to our next patch, Spring Cleaning! This upcoming patch includes some new content, as well as adjustments to the gameplay, UI, and visuals. Of course, as the title suggests, we have also fixed some of the reported bugs, which we will briefly touch upon at the end of this City Corner. So, get your dusters ready, and let’s get into the Spring Cleaning! New AdditionsSometimes there are moments when you’d just want to keep your city and buildings looking a certain way, without upgrades changing the aesthetic of your houses. Luckily, wi |
| Updates for Paradox Mods | 2026-04-22 | Hello from the Paradox Mods team!And welcome to our first dev diary! We’ve been working on some cool features over the past months, and we’re very excited to take you through all that’s coming in the next update, which will be out, if all goes well, at the end of this month. Our overall goal is to constantly improve your experience while using Paradox Mods. From long-awaited features to smaller changes that make your day-to-day use of the platform more enjoyable, let us take you through this journey!As we continue to improve the platform and introduce new features, we are keen to share more of that progress with you. Let us know if you would |
| City Corner #4 - A Peek into Performance | 2026-04-09 | Greetings, Mayors!In this City Corner, we will be diving deep into the technicalities of Cities: Skylines II, and more specifically, the performance of it all. We sat down with our technical director and lead programmer, who went into detail about the performance in general. In addition, we take a look at the two types of performance issues our team has looked into. We also talked about our plans for the future, and what they might look like when it comes to fixing the issues in performance, and a sneak peek at a new tool that we’re planning on adding in the next patch!With that being said, buckle up, let’s get right into it!What Is Performan |
| Office Evolution & City Stations - Available Now! | 2026-03-18 | Cities: Skylines II joins the anniversary celebration today with brand-new content and a fresh free update.Available now:Office Evolution expands your high-density office zones with new signature buildings that blend heritage character and modern design, reshaping your business districts in bold new ways.City Stations enhances your transport network with compact depots, detailed rail yards, alternate station designs, and new landmarks to elevate your infrastructure game.Two new radio stations, Smooth Vibes FM and Skyrail Radio, are also ready to soundtrack your city’s growth.In addition, a free patch from Iceflake Studios is now available to |
| Dev Diary - Office Evolution by Titan | 2026-03-17 | Hey guys, this is Titan!Some of you may know me - I have been an active Asset Creator for Cities: Skylines since day one, am making assets for Cities: Skylines II as well, co-created the German Region Pack, and occasionally make some videos on YouTube as well… Today, I have the pleasure to tell you a little something about my very own Content Creator Pack: Office Evolution. I always felt like office zones are neglected in the game and its predecessor. In Cities: Skylines, we only had high-rises; in Cities: Skylines II, we have either very tall high-rises or suburban single-story low-density office lots. We now have some quite nice Signature B |
| Dev Diary - City Stations by Bad Peanut | 2026-03-16 | Hello everyone!Bad Peanut here, and this is the dev diary for my first Creator Pack for Cities: Skylines II. For those of you who know me, I’m going back to my roots with some public transport. For those of you who don’t know me, I started out making assets for Cities: Skylines way back in 2015 (yes, I am now officially Old™), where I made train station assets, vehicles, and other things inspired by local Australian architecture.Over the years, I released quite a portfolio of content for free on the Steam Workshop, as well as two Content Creator Packs - Train Stations and Sports Venues. Since Cities: Skylines II launched, I’ve also continued |
| City Corner #3 - Anniversary Free Update | 2026-03-12 | Happy Anniversary, Mayors!The Cities: Skylines franchise turns 11 years this month, and to celebrate, we are releasing an Anniversary Patch! This patch won’t be the biggest one you’ve seen, but it still includes a new asset and a couple of new gameplay features. At the end, we will also be looking ahead; what we are currently doing, and what you can expect from us in the near future!Let’s get started, shall we?Welcome to the Iceflake Arena!What is big, oval-shaped, and has the cleanest ice in the city? It’s the Iceflake Arena, of course! In the Anniversary Patch, we have added a new signature commercial building called Iceflake Arena, which p |
| Happy Birthday, Cities: Skylines! | 2026-03-02 | A word from The Cities TeamEleven years of city-building, creativity, and a community that keeps raising the skyline.This month, Cities: Skylines turns 11. What started with a handful of carefully placed roads has grown into vast regions of glass buildings, tangled highway interchanges, sleepy suburbs, and transport networks that are always at 100% efficiency. Every district painted, every mod installed, every comment and piece of feedback has shaped this journey. The past eleven years belong as much to you as they do to us. During the Month of March, we will be celebrating you and the new editions to both of our games, both for Cities: Skyli |
| Hotfix - Patch 1.5.5f1 | 2026-02-26 | This patch should not affect mods, and loading of old savegames is supported.After our first patch last week, we received a lot of great feedback from you. Thank you for all the comments and for pointing out the issues, especially regarding the lighting. Now we have prepared a hotfix, addressing the lighting and some other points you raised. Visual:Reduced indirect multiplier value back to the original value.Global Illumination setting can now be enabled correctly.UI:Camera zoom now works when the color customization color wheel is open.Development tree title text visibility improved.Misc:Fixed issue where Autosave setting state sometimes res |
| 1.5.4f1 - First Frost | 2026-02-18 | Hello Mayors!Our first patch, First Frost, has landed with the full release notes! This patch has minimal impacts on mods, and loading of old savegames is supported. Simulation changes will be applied over time in old savegames.More details about the visual changes in this patch can be found in our City Corner #1, and details about some of the other changes can be found in our City Corner #2.Gameplay:Reduced bicycle trips by 80%.Fixed time of day not taken into account when determining death in updates, causing most citizens to die between 0 and 6 o'clock.Calculate deaths 16 times per citizen per day instead of 4 to further reduce the number |
| Cities: Skylines Creator Program - Apply Now! | 2026-02-16 | Hello Creators! We’re opening applications for new members to our Creator Program! If you’re an active asset creator, map creator, code modder, or video creator, submit your application through the form below, and you could be added to our closed beta, with access to early builds, the devs, and other opportunities… Creator Program Benefits:Ongoing early access to beta builds for new game patches and DLC.Ability to provide direct feedback to the CSII team during the early access period.Early access to mod tools under development and the ability to provide feedback on their development.Request modding tools/features that would benefit the avera |
| City Corner #2 - Upcoming Gameplay Updates | 2026-02-12 | Hello Mayors!Welcome back to the second City Corner! As we talked about two weeks ago, we are back with another installment in this series, with more information about our first patch. In this City Corner, we go through more additions and bug fixes that will be included in the next Patch. We will also answer some of the questions you sent us after the last City Corner. Before we dive into all the juicy details, we want to thank you for all the feedback we received after our last City Corner! Your feedback really helps us to make the updates even better in the future.Now, let’s get to the main course! Life and DeathUntil now, the Grim Reaper h |
| City Corner #1 - Upcoming Visual Updates | 2026-01-29 | Greetings Mayors!Happy New Year! As we start 2026, we at Iceflake wanted to share some news about our progress with the first patch; our plan is to publish several news posts between every release, with the ones in-between releases focusing mostly on things coming in the next update. However, we will include other topics as well down the line.There are quite a few changes coming in this first patch, some of which you have been requesting for a long time. In this City Corner, we will be focusing on the visual features of the first patch, and in the next one, we will focus more on the mechanics. And, if all goes well, you will be able to see th |
| Paradox Interactive Winter Sale! | 2025-12-18 | Cities: Skylines and Cities: Skylines II are part of the Paradox Interactive Winter Sale! You can get up to 70% off on your favorite city-builder games until the 5th of January! https://pdxint.at/WinterSale25 |
| Creator Pack Bundle Release | 2025-12-15 | With the new Creator Packs being out, we wanted to share more bundles to make collecting them all cheaper. You can now get the Content Creator Bundle on Steam for 15% off! |
| Hotfix - Patch Notes 1.5.3f1 | 2025-12-10 | Hello Mayors! Thanks for all the reports related to the disappearing UI, and we're happy to say that we've now released a hotfix in 1.5.3f1 to fix this! Patch Notes: Fixed an issue that caused Code Mod UI elements not to load in-game. If you have anything that you want to report, please post a thread on Paradox Forums at this link:https://pdxint.at/CSIIBugReporting. It's the best place for us to gather all the information that we need to fix it and improve the game. |
| Adding Custom Assets | 2025-12-04 | Greetings mayors! It’s been long underway, but we’re excited to finally bring you custom asset support for the Editor. In this dev diary, we’ll walk you through the steps to create your very own buildings and props for Cities: Skylines II, along with a few tips to make the process easier. Our goal for the Editor was to streamline asset creation and give you more control over your creations, while enabling you to create complex assets on par with official content. The result is a powerful tool that offers a lot of freedom and flexibility. It can take some time and patience to learn, but once you get the hang of it, you’ll be able to create tru |
| Asset Mods Patch | 2025-12-04 | Hello Mayors! We are excited to share the first iteration of the Asset Mods implementation for Cities: Skylines II! This patch contains a beta update to the Editor that supports asset mods. This will require an update across the base game and all DLCs to support the new way of asset handling, meaning you will see an update to all previous content released for Cities: Skylines II. This update does not change anything about the content in the DLC, just making them compatible with the new Patch. This patch basically means that your favorite modders can now start sharing mods, and you will soon see them popping up in the Paradox Mods! We have see |