Keep one untouched copy of version 1.1.4, install only one mod at a time in a separate copy, and roll back immediately if the game stops launching or saving.
Establish a clean baseline
Launch the unmodified game once before changing files. Confirm that it starts normally, then preserve the original archive and duplicate the working folder. A backup is useful only if it remains untouched.
Install one change at a time
Read the mod’s stated game version and file layout. Apply it to the duplicate folder, not the clean copy. Launch and test before adding another mod; otherwise you cannot identify which replacement caused a failure.
Use the dedicated mod installation guide when a tool asks for the game root or reports an invalid folder.
Compatibility checklist
- Compare the mod’s supported version with the current game version.
- Do not assume two mods that replace the same file can be combined.
- Keep a short note of every file copied or replaced.
- Treat executable replacements with extra caution and scan downloads locally.
Roll back a broken install
Remove the modified copy and return to the untouched baseline. Reproduce the issue with one mod only. If the clean build also fails, the problem is not proven to be a mod conflict and should be diagnosed separately.
Continue with the launch and save troubleshooting checklist before editing a save or disabling system protection.
Keep going