Find out where to get all 74 Blueprints in Arc Raiders with this guide, which plots all the places on each map with the ...

In Blue Prince, there are several threads to follow, including the Pump Room. This room lets you raise and lower the water levels in several rooms around the mansion, opening up access to new areas.

As mentioned, this puzzle requires a bunch of setup. Here's everything you need to do before starting this puzzle and links to guides if you need help: You'll need three items to solve this puzzle.