|< ID Card 77||All ID Cards||ID Card 79 >|
ID Card #78 is a collectible item in Dead Island. It is part of the My collectibles, let me show you them! challenge, and the Gotta find'em all and Nearly there achievements. It can be found in the Laboratory map of Act III.
In the bathroom of the building where you have to enter for the quest No Sign of Life.
Can be seen on the following map: