|< ID Card 76||All ID Cards||ID Card 78 >|
ID Card #77 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. You can only enter the building after you get the "Rotting Flesh" quest.
On a desk, in the building where you have to pick the tissue samples during the Rotting Flesh quest.
Can be seen on the following map: