Fix
Start Menu / launcher was starting the Development Binaries/Win64/threedensity.exe, which looks for a .uproject and fails with “Failed to open descriptor file”.
Cause
The release ZIP only contained the inner threedensity/ folder (missing the Shipping bootstrap + Engine deps), and a Development binary had replaced threedensity-Win64-Shipping.exe.
This release
- ZIP is the full
Packaged/Windowslayout:threedensity.exebootstrap +Engine/+threedensity-Win64-Shipping.exe - Launcher prefers the bootstrap / Shipping exe and never picks Development
Binaries/.../threedensity.exe
Test
- Download ThreeDensitySetup.exe (or portable ZIP)
- Install / launch from Desktop or Start Menu
- Game should start without the descriptor-file error