Yeah I can see the protection. ElecKey. Been cracked before. (Usually by unpacking main executables, patching routines that try to provide a uniqueness to hardware IDs, and then lic keys genned for those IDs.)
I tried to upload my unpacked but too large.
I don't like file hosts but eh... (Success though.)
Replace .\WindowsNoEditor\FallenDoll\Binaries\Win64\FallenDoll-Win64-Shipping.exe with the one I've patched above (use non-VR or VR).
Don't use the original shortcuts to Fallen Doll. They still point to the Loader at .\WindowsNoEditor/FallenDoll.exe which can be deleted if you want. (You can also update any shortcuts to the cracked executable...)
Note that I have not tested anything except having started "Endless Mode" to see if it'd load 3D-models. Everything else seems to work but I'm not into these kinds of games really. I just patch things for a friend. Enjoy.
I got a fatal error when i launch it. Maybe im dumb, but idk whats going wrong.
Edit: Okey, it was the firewall. Nice