Ensure you have every numbered part of the collection.
For a safe and guaranteed working experience, the game is officially available on Steam and the Epic Games Store . Unch4r7ed4Leg4cyofTh13vesColl33ction.part13.rar
Right-click only Part 1 and select "Extract Here." The software will automatically pull data from Part 13 and all other pieces to rebuild the full game folder. Ensure you have every numbered part of the collection
Check that Part 1 through Part 12 (and any parts after 13) are identical in size. Only the very last part should be smaller. Unch4r7ed4Leg4cyofTh13vesColl33ction.part13.rar