Some keys in Dead Island 2 can only be obtained by doing side quests. Either that, or some locked chests, boxes, or lockers are not available until you advanced into the story. Either way, the best way to unlock all of the boxes in one go is just to complete the game first, then do everything else afterward.
Of course, you play the game as you see fit, but where’s the fun in worrying about side quests when the main story isn’t over? In this guide, we will show you how to unlock the Custodian’s Locker.
How to Unlock Custodian’s Locker – Dead Island 2
First of all, you will need to complete the Missing Rainer quest. Without it, you will never be able to find the Custodian’s Locker Key.
Once you have completed the quest, you will then be able to pick up the Custodian’s Locker Key.
After getting the key, you can then head into this room and open the Custodian’s Locker with the key you picked up.
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