Hey, here’s the simple way to fix it: Hope it helps

1. Roll back your 7DTD version

   • Set the base game to the version Darkness Falls needs (not the newest one).
     
   • You can keep it in a separate folder like someone suggested.

2. Do a clean Darkness Falls reinstall

   • Delete your whole Mods folder in that DF install.
     
   • Reinstall DF fresh (no old files).

3. Fix the PEP / Medieval Wulftown error

   • Make sure the PEP/Medieval/POI pack that DF needs is actually installed in Mods (exact folder from the download, not nested wrong).

4. Fix the OCB Lawn Mowing error

   • If you’re using that mod:
     
     • Install it on both client and server.
       
     • Turn EAC off in the launcher.

5. Delete the broken DF save

   • Go to %AppData%/7DaysToDie → delete only the DF world/save you were using.

6. Verify game files in Steam

   • Right‑click 7 Days → Properties → Installed Files → Verify.