So about
scrap iron refining/purification
Well i thought there beeing scrap iron all around in the world after a war recycling will be much more usefull cause of a lack of mines and trade.. (it will also get a higher quality steel)
ingame: reveals iron (?) requires generators/adapters (building or tech) and is prereq for techs and/or units that willr equire a lot of metal to be build
should be available to everyone without robots and perhaps mutants...
Here I could imagine some kind of electric arc furnace
eg:
gecko leather tanning
wellthe idea is simple.. you remember this gecko quests in fallout2? yeah to make a leather armour out of it you will ahve to tann the leather.
ingame: reveals geckos, makes leather units available..
eg:
perhaps it's possible to make the yellow background somehow more "falloutish"
water purification
hmmt his should be a kind of logic... you will need fresh water to stay alive in the wastelands... perhaps here we could use a pic of the waterchip? Not sure about it yet... perhaps an alternative solution would be a tech called well digging
ingame: hmm makes either fresh water suply building available (counts as grannary) or it is required to irrigate (but therefor I would use soil renewal) or allows growth beyound a pop of 6/12
radioactive storage glass
well i don'T know exactly what to do with this one but today nuclear waste is sometimes stored in glass..
e.g.:
sub terra growing
well this is something seen quite often in fallout (fo1 und la boneyard and fo2 the guys living under the earth next to the farm (modoc? uhh names are not my thing))
plants and mushrooms are grown under the earth to guarantee an minimum supply of food
ingame: hm not sure perhaps grannary or something like that...
as pic it would be perhaps possible to use a screenshot of one of the locations...
optical communication systems
well this can either be high or low tech.
low: a kind of chain of watchtowers with fire/smoke to communicate
ingame: watchtower (walls)
high: akind of laser communication via a ballon (or something like that) which is tap proof available only to the humans and perhaps to robots...
ingame: makes fast and strong explorers available (like Hummer(?))
master//slave communication
this would be a kind of optical com tech for robots or mutants master commands either the minor robots or the supermutants)
as picture I would here use something abtract so it could bbe used for both of them...
artificial meat growing
this was already available in ctp (2?)
I would this use as mutants tech to make new units available...