When wrestling is added in IVAN, sure, but it doesn't have that. The system is much simpler.

It does, I think. At least it is very effective. A lategame IVAN character usually has insane dex, so why wouldn't an extremely dexterous person be able to use two weapons effectively? Even in the real world people used two weapons, to have more combat flexibility and to be able to parry much better. The damage and STR isn't everything.

STR already influences weapons enough, I don't think there is any need to complicate it. Weapon breaking according to STR could lead to unplayable games, as some characters reach >400 STR with artificial limbs

Dual wielding one-handed weapons is, well, kind of silly - handles on one handed weapons aren't designed to be used with two hands. Try to use a knife with both hands. And they don't generally require much strength to use, so what's the point anyway?

Only dexterity influences attack speed. As far as I know, if you double-wield, weapons attack just as quickly as they usually would if you one-handed them.

My knowledge of game mechanics is a bit dated, so take this with a grain of salt. But as I recall, in game, damage and accuracy are influenced by strength. A weapon has a minimum strength required to use it, determined (primarily? exclusively?) by it's mass. For each point of strength above that minimum, you get a bonus to damage and accuracy (hence the "This weapon is difficult to use" messages - you aren't getting full benefit because you aren't strong enough). This is capped at some point (+5? not sure).

However, you can wield some (most) weapons in both hands (daggers, short swords, long swords - notable exceptions, one handed only). This means you are using the strength of BOTH arms, rather than the strength of only one arm. So, you can use the two-handed sword. But if you are strong enough to swing a two-handed sword with one hand, you don't really get any benefit by putting your other hand on it.

So, to answer the original question, yes, arm strength is doubled (or thereabouts) when using a weapon with both hands. However, beyond a certain point, more strength doesn't provide any benefit, thus rendering the point moot for smaller weapons. And when your right arm is made of steel, every weapon is small.

Two-handing should be thought of as a penalty, until you have enough arm strength to dual-wield.

Two-handed weapons are generally big, which also means that they have higher damage and block values compared to one-handed weapons made of similar materials. They don't really need another buff.

But as fejoa said, 2H weapons are already strong when two-handed, but become even better when you have the AStr to dual-wield them.

The spreadsheets are a bit hard to compare, given how each has differently sized columns and different order of entries.

That's my dream, too. Maybe one day I will figure out how to do that.

I don't think there's ever been a limit on how early a material can appear

I have noticed in the later versions that high power materials appear significantly more often than they had in .50. Im not sure how the rarity of a materials generation is regulated , but I think it should be reviewed. This is all anecdotal by the way - I have no actual data to support this.

New players also often find their characters starving to death looking for a place to go.