Earlier this month, Paradox and Iceflaker Studios revealed that the next update for its hit city simulator, Cities: Skylines 2, would add a benchmark tool and numerous gameplay fixes to address performance issues, titled Spring Cleaning. Today, that patch has officially gone live.
Cities: Skylines 2 Spring Cleaning – Patch 1.5.7f1 introduces many long-requested quality-of-life features, UI adjustments, and significant bug fixes. First, Historical Buildings now have a new toggle that prevents specific buildings from leveling up or changing their physical appearance, allowing you to preserve the look of a level 2 building even if it reaches max level.
The addition of a dedicated UI button will consolidate all active mods into a single location, preventing icon clutter and overlap in the game interface. The benchmark tool will let players compare performance across patches and see how updates affect performance on each individual computer, while also giving developers a chance to gather data on which areas and types of hardware need more focus.
Toolbar’s size and transparency (0–100%) is now available, and scaling the toolbar also scales buttons and other elements for better accessibility. To improve traffic management, Iceflaker Studios has removed citizens’ ability to enter and exit the city by taxi, a major cause of traffic jams.
Education has been balanced by adjusting demand logic to prevent elementary schools from consistently being over capacity, while high schools remain underused. The overall dog population has also been reduced by adjusting household pet limits and spawn rates.
Other bug fixes include a critical issue in the Bridges & Ports DLC where commercial/industrial buildings ignored ports for importing goods and storing mail, and the issue of excessive student numbers in elementary schools that forced players to overbuild schools. The “Urban Cycling Initiative” policy will now also increase the likelihood of bicycle use from 20% to 50%, making bike-centric cities more viable.
Cities: Skylines 2 Spring Cleaning update even includes significant backend improvements for the Paradox Mods platform:
- Parallel Downloads: Support for downloading up to 3 mods simultaneously.
- Playset Sharing: A new feature to share mod configurations with other players.
- Background Management: You can now manage playsets or browse the store while downloads are running in the background.
It is important to note that the team has already started planning and preparing the next patch, which includes more bug fixes and adjustments to traffic and pathfinding. For more information on this and other previous patches and roadmap plans for Cities: Skylines 2, be sure to check back to Simulation Daily for updates.












