Dead Signal (also stylized as Dead Signal or SIGNALIS – depending on the specific FitGirl repack you have; note: if you mean the sci-fi horror game SIGNALIS , this guide applies. If you mean an obscure indie titled "Dead Signal," the fixes remain identical for Unity engine errors).
When a developer builds a game for Windows 10/11, they often utilize system libraries that do not exist in Windows 7. For example: Dead Signal - Windows 7 Fix- -FitGirl Repack-
d3d12.dll dxgi.dll (for IDXGIFactory4+)
This guide will walk you through 7 proven fixes to get the game running on Windows 7 (64-bit) SP1. Dead Signal (also stylized as Dead Signal or