Damage "more" Multipliers and their Interactions

Dear Community,



I would like to know the interactions of more multipliers:
Do they stack multiplicative (I think they do) or additive with each other?


In example:
I deal damage with 200% Crit Multi using Melee Physical Damage (40% more), Melee Physical Damage on Full Life (40% more) and 800% Facebreaker. All gems are lvl 21.

I deal 100 Physical Damage without Crit:

100 * (1 + 40%) * (1 + 40%) * (1 + 800%) = 1764 ?



I deal 100 Physical Damage with Crit:

100 * (1 + 40%) * (1 + 40%) * (1 + 800%) * (200%)= 3528 ?



and when the enemy is shocked:

100 * (1 + 40%) * (1 + 40%) * (1 + 800%) * (200%) * (1 + 50%)= 5292 ?



***Stacking multiplicative with each other seems very overhelming for me (when using FB).



If it happens that I have 2 multipliers of the same type but on different gems / items will they stack multiplicative too?

theoretical example:

40% more Melee Phy. Damage on Gem and 10% more Melee Phy. Damage on ring (mod).

(1 + 40%) * (1 + 10%) or (1 + 40% + 10%) ?




Please correct my math when it is wrong :) and excuse my auto-complete.

If they stacked they wouldn't be multipliers anymore :)

I mean they always multiply increased damage modifications but somehow understanding the concept of their interaction between each others takes too much time for me. :D

like inc. phys. damage with Claws, inc. phys. damage, inc. phys damage with 1 handed weapons stack additively and get multiplied by more phys. melee damage.

but what happens when you have multiple more phys melee damage? will they multiplicate each other? or will they add like the inc. phys. dmg. Multipliers?

theyre all multiplicative with each other, each source of more damage is its own layer. To the best of my knowledge frenzy charges giving more damage are additive with each other, so youll get a total more damage from all ur charges added together. But it will be multiplicative with melee phys, conc effect, bloodlust, melee full life etc and they are all multiplicative with each other.

When they all stack multiplicative:

I am in heaven.

Multipliers are both the strongest type of bonus you can get and also the easiest to work with, you got 100 damage, apply one 1,5 multiplier and you get 150, apply another 1,5 and you get 225, that's all there is to it.

And shock isn't really a multiplier, it's part of a multiplier like any other increase in the game, it would stack with stuff like vulnerability or fortify, 'less damage taken' on arctic armor is a multiplier.

There are also a few 'stacking' multipliers like frenzy charges that Ludvator mentioned, we also got stage damage bonuses on flameblast, incinerate or reave aoe.

Shock is increased damage taken.

Shocked enemies take 50% increased damage after mitigation.
-> more damage dealt by your character

Am I wrong?

You said it yourself, it's 'increased'. If you were shocked for 50% increased, had vulnerability for 40% increased and fortify for 20% reduced you would apply a 1,7 multiplier to damage taken as a sum of all increases/reductions. However, arctic armor would always apply its 10% less damage separately.

The reason increases and reductions to damage taken don't add with your increases is because they apply to a different number, they go on 'damage an enemy takes' not 'damage you deal'.

so shocked enemies without certain buffs like Fortify will receive 50% more dmg from me.

Of course, exactly the same as taking a blank char and giving him 50% fencoil with no other damage bonuses - bam, 50% more damage. There are no other members in the sum so an increase acts as a multiplier.