I never really thought of it until now, but the world of Final Fantasy is legitimately damn terrifying. Mind you, it takes a LOT to even shake my confidence. I'm actually a little scared to try this mod out. Nice work.
Now all we need is someone else to work on the "Obligatory World Airship" megaproject within this mod's properties.
Bonus points if you can replicate any of the ships from any Final Fantasy games. Including the really nifty ones from FFXII. They are colossal and cool looking.
If you're also up to it, try to change up the materials to make them more like how the games have them setup (IE- Gold is actually a useful armor/weapon material, though it's material cost is less because of it (like in games), mythril exists, and so on). Lodestone can also be a material (inspired by Chrono Trigger) as something just a bit more useful/dense than silver which can also have a decent cutting edge.
Magicite (non-esper) and nethicite can also be a material with a low/negative weight value, but can be used as a flux material to make manufactured lodestone (not as good as the native stuff, but still useful). Actually magi/nethicite can make awesome flux material for magic-based/encrusted weaponry (Runic blades?).
I think magicite is lightweight, but nethicite is heavyweight (seeing as it's the negative counterpart, according to FFXII). Kinda like how the islands float in FFXII because of the properties being similar to Upsidaisium (Rocky & Bullwinkle unobtainium). The two materials (if possible to set the properties correctly) can cancel each other's effectiveness out. Magicite-empowered blades (really sharp, but light) are practically useless against nethicite armor (really dense stuff). Nethicite hammers can't hit magicite-encrusted armor (faster warriors due to lighter armor). Something like that. Just by base values alone, they can balance each other. Funny enough, I think both materials can be found amongst each other, which is why other places don't take off towards the sky so easily as magicite-rich places.
Now, if it were possible to make floating islands in world-gen...
EDIT:
Hmm... Apparently there's one more material -cite. Auracite. Really potent stuff able to hold spirits essentially. Kinda like FFVI/Esper magicite.
More -cite-ations:
http://finalfantasy.wikia.com/wiki/Sage_Knowledge_1-26#SK_12:_Magicitehttp://finalfantasy.wikia.com/wiki/Magicitehttp://finalfantasy.wikia.com/wiki/Nethicitehttp://finalfantasy.wikia.com/wiki/AuraciteEDIT EDIT:
Now that I think of it, I think Runic Blade weapons (like what Celes uses) are more like weapons infused with Nethicite, rather than Magicite. Seeing as Nethicite is essentially the anti-matter of Magicite. One magically gifted can use it like a magnet for magic, rather than turning the combination into a nuke (
like what happened to an airship in FFXII).
You can sorta say that magicite and nethicite are like what matter and anti-matter are here. Alone, they're rather benign, combined = much ‼FUN‼ to be had kilometers in diameter.