It should really provide some armour points, as you do have a lump of metal attached to your back (the reactor).

Yeah idea is cool. How many points do you think are fair?

Got implemented

Iron level seems fair, although it contains diamonds, it's mainly steel-copper-tin making up the armor, but I am not against "nano" armour level ( I only mean armor points wise, so it's close to diamond, yet not quite as good ).

I set it now that it show 1 full shild, 50% damage absorbtion and max 3 damage absorbtion.
That is fair for free (a constant shield that do not take damage) when i make it higher then i will make downside effects (like that the reactor can explode through damage)

Oh, kk, nice :D