Bubblis Mechanicus

A deep sea power facility has become contaminated. 

You are a Bubblis Mechanicus, lone guardian of the underwater labyrinth. Your primary directive is to reach the reactor core and flush its fuel to avert an untold crisis. Pressurized bulkheads block your path.

Beware, for unknown life forms roam these waters. Untold horrors await, should you weaken in your resolve.