Path of Exile RNG

I was hoping to do a mathematical study on the probability of the item generation and drops in the game.
I was wondering if anyone had any information on the topic and a GGG member response would be appreciated if this is an appropriate request

There's some info here http://pathofexile.gamepedia.com/User:Chriskang/Sandbox/ItemAffixSpawnRates

It says sandbox but how did this person get these numbers?

Not sure if it's data-mining or statistical analysis, but probably the latter since he didn't just release for every item type, I believe he had a forum post asking if anyone wanted him to do other itemtypes (and from the list it looks like some was added since last I looked at the wiki)

I believe he data-mined it rather than statistical sampling (at least I remember that was the case - that some of the numbers were stored inside Content.ggpk and the guy reverse-engineered them.)

One way or the other, searching this forum for his nick should tell you the history of that

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cryptc wrote:

There's some info here http://pathofexile.gamepedia.com/User:Chriskang/Sandbox/ItemAffixSpawnRates

Holy G

Tyrannical mod spawn rate; 0,091
Heavy mod ; 1.8

gotta love that worst %physical mod spawning 20 times as often rofl

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xXx_EliteHardcorePro_xXx wrote:

Tyrannical mod spawn rate; 0,091
Heavy mod ; 1.8

gotta love that worst %physical mod spawning 20 times as often rofl

And Tyrannical alone is no use, you need to have a good +physical dmg mod and a +attack speed mod to get a nice or OP weapon.

That's the reason why crafting is so expensive and for maybe 0.1% of the players...

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rrrrr5r wrote:

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xXx_EliteHardcorePro_xXx wrote:

Tyrannical mod spawn rate; 0,091
Heavy mod ; 1.8

gotta love that worst %physical mod spawning 20 times as often rofl

And Tyrannical alone is no use, you need to have a good +physical dmg mod and a +attack speed mod to get a nice or OP weapon.

That's the reason why crafting is so expensive and for maybe 0.1% of the players...

You don't have to reserve crafting for making only godly gear. You realise this yes?!!

So, "crafting" a 1h phys weapon means that, for the best result, you have to get Emperor's/Tyrannical ... of Celebration then Regal for either of the Emperor/Tyrannical before before exalting. Which rounds up to less than 1%. Yep. RNG is RNG. On the bright side, if you don't care for Flaring, you can start "crafting" at level 73.