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Duke Nukem 3D Hints
Where is the blue card?
1 of 5: The blue keycard will open the door to the toxic facility.
2 of 5: Look for a ledge with a view.
3 of 5: Specifically, look for the ledge that overlooks the lake.
4 of 5: There is a small cave on the edge of the water.
5 of 5: This cave leads up to the ledge and the blue keycard.
