The reactor tech has almost the most important jobs in the whole game; you give the sub power, Power what the sub needs to run to fight to live.

You spend almost all of your time in the reactor room running the reactor.

The reactor take some time to master but when you master it you can get the reactor producing 22 watts before anyone asks.

When you click the panel controlling the reactor it brings up a window with 3 selections:

Reactor
Generator
Condenser

First off raise the control rods a few times around 930 is a good temperature.

Second tighten the valve a bit.

Third turn the generator on and wait for the power to rise But don’t let it go above 200% or the batteries will blow and that’s bad.

Forth when the generator output is nearing the amount of power you want click maintain pressure in the condenser panel, adjust as necessary to get the power output to what is needed

Practice makes perfect.

Anything I missed?
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Edit1: changed the watts.

Pinned

Unpinned, because this directs people from my More Advanced Tutorial on operating the reactor and mine is far superior.

Umm ok... it’s just that people where complaining about how there "wasn’t" a tutorial so I pinned mine so they SEE it.

I hate to admit it but yours is better.