Steam authentication failed

Technical Help
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Game Version: VO.8.5

  • Platform: Steam windows

  • Mods: never used

  • Hardware Specifications & Operating System Windows 11 , CPU 9800x3D , GPU 9070xt, RAM 32GB 6000 cl30, 2TB gen4 storage

  • Issue Date: May 21, 2026

  • Error Message: steam authentication failed ,please restart steam client.

  • Details: After updating, my game is malfunctioning. I am unable to launch it as it repeatedly crashes. Additionally, an error message from Steam

  • Details:
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3 posts were merged into an existing topic: After update 0.8.0 , Steam authentication failed, please restart steam client