Mark I-O reactor, 2.33 efficiency and 3 extra chambers

    Very nice,
    I just prefer 2.5 Efficiency or better having fewer than 6 chambers usually (not always) means that you are not ready for nuclear power

    Thanks, this is my first reactor, and I'm a little short on iron and tin, so I figured this could be useful if you need power but don't have enough to get all the 6 added chambers.