Hotfix - Patch 1.5.8f1 — Cities: Skylines II Steam update #628548

Hello Mayors!This patch should not affect mods, and loading of old savegames is supported.After our latest patch, we received a lot of reports about the...

Steam App
Cities: Skylines II (949230)
Event type
patch note
Published
5 May 2026 - 10:11:48 UTC
Source
steam_community_announcements
Hello Mayors!This patch should not affect mods, and loading of old savegames is supported.After our latest patch, we received a lot of reports about the long loading times that occurred when starting the game. Thank you again for your comments and patience while we were working on a solution! We have now prepared a hotfix that addresses this issue, which you can read more about below. Paradox Mods:Fixed long loading times when mods are loaded at startup. Misc:Info and Warning level logging no longer print callstacks to log files.Fixed a crash when loading a save game.Post-mortemWhen you started the game after the recent patch, you might have noticed that the startup loading times were a lot longer than in previous versions, especially if you had large amounts of mods active. Due to changes in the PDX Mods SDK, the way mods were loaded by the game added an unintentional side effect. To be...

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