Known issueFixUpdated · 2 replies on Steam
9 Kings: GameAssembly.dll Blocked by Windows Smart App Control on Win11, Game… (Workarounds)
Short answer
Suggested fix (unconfirmed): Turn off Smart App Control in your Windows 11 settings, or add an exclusion for the game's folder in your security settings.
The problem
Since October 15, 9 Kings fails to launch on my Windows 11 machine. The game process starts and immediately fails with an IL2CPP load error. The root cause is Windows Smart App Control (SAC), which is blocking GameAssembly.dll at the Code Integrity layer because the binary isn't signed with a certificate SAC's cloud reputation currently trusts. How I confirmed it was SAC and not Defender or…
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Source: original Steam Community discussion. Quotes are shortened; all credit goes to the posters. Tags: launch, nvidia