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Under A New SunNewsHotfix Patch
Game update

Hotfix Patch

Under A New Sun · published 22 Dec 2025, 11:52 UTC · build 21282812

All newsPlayers around this dateRead on Steam

Hey everyone,

a new patch is now available.

  • Fixed an issue where the fabricator was not being saved and reloaded correctly
  • Fixed an issue where the wind turbine dropped incorrect items when dismantled
  • Fixed a problem where some save games did not appear because they were stored in the wrong folder when the game was not connected to Steam

Missing or outdated save files

If you were affected by an issue where you played for some time, saved the game, and later found that your save was missing or outdated, please check the following folder on your PC:
C:\Users\%YourUsername%\AppData\Local\UnderANewSun\Saved\SaveGames

You may find a folder there named “ERROR, BAD UNIQUE NET ID”. This folder was created when the game was saved while it was unable to detect your Steam ID - usually because the game was not connected to Steam at the time.

How to restore your progress

  1. Open the folder named “ERROR, BAD UNIQUE NET ID”
  2. Find the save files with timestamps that match the progress you are missing
  3. Copy those files
  4. Paste them into the folder with the long number as its name (this number represents your Steam ID)


If the Steam ID folder already contains files with the same names but older timestamps, delete those older files first.
The game only recognizes save files named “GameSlot1” and “GameSlot1_Meta” (or the corresponding slot numbers).

This issue should now be resolved. Once you save your game at least once (per slot) while properly connected to Steam, future save files will be stored correctly.

Thanks everyone for the feedback and support!

More from Under A New Sun

Other announcements

All news
Major update31 Aug 2026Explorer's Update - Out Now!Survivors, grab your gear, the Explorer's Update for Under A New Sun is now live! Tracking & exploring during your journey are getting a boost thanks to the brand-new in-game journal system and interactive, customizable map markers, all while diving in the sea is now even more immersive with a procedural update to the underwater world. Plus, you will feel an immediate difference with some highl…Game update1 Jul 2026Hotfix PatchHey everyone, a new patch is now available. · Bug fixed that iron lanterns built on the ship would reload as regular torches · Added possibility to turn the plank window 180° when building · Fixed some spelling mistakes Thanks everyone for the feedback and support!In-game event26 Jun 2026Building Additions & New Settings (v0.10.1)Survivors, A new update has arrived, bringing even more additions to the recent building update, alongside the requested gamma slider and an experimental day length setting to Under A New Sun ! This update focuses on giving you further architectural freedom with new structural pieces while allowing you to customize your visual and gameplay experience even more. Below you’ll find the full list o…