Item stacking

[Phelsarus'Beel]

Ok now i know that items stack the more you pick up but i wonder how some special items stack

Like infusion does it increase the amount of max health i get per kill or does it do something different

Or the glasses that let you crit (forgot the name). The discription sais it gives you a 20% chance so does this stack with each item i pick up (so if i have 2 does it mean i have a 40% chance) or does it interact in a different way

I mean so for some items i can guess what stacking does like leech seed increases the amount of restored health or the missiles have a higher chance to proc but for some items i cant realy imagine how they stack up

[Nasty Peep]

I think Infusion adds +1 to HP for every kill. So stacking adds another +1.
If they stack, until someone proves otherwise, I just assume it does what it says on the tin, so 2 red glasses should be 40%.

[Arrakis]

The stacking has diminishing returns if I recall corectly, so you get less benefit every item that you stack. It will get better every time, but with a smaller amount. I think the second infusion gave +0,5 which rounded down to 1

[Ћ Abomination Jones]

Basically add on the effects again.
First Aid Kit gives 10 HP, 2 gives you 20, etc.

[Nasty Peep]

Originally posted by Propane Nightmare:

The stacking has diminishing returns if I recall corectly, so you get less benefit every item that you stack. It will get better every time, but with a smaller amount. I think the second infusion gave +0,5 which rounded down to 1

Originally posted by Ћ Senator Jones:

Basically add on the effects again.
First Aid Kit gives 10 HP, 2 gives you 20, etc.

Is there evidence/proof of either of these? Or just hunches?

[Noodl]

On their website FAQ they say that items have diminishihng returns.

[smk]

Originally posted by Ћ Senator Jones:

Basically add on the effects again.
First Aid Kit gives 10 HP, 2 gives you 20, etc.

Nah the 2nd gives you +5 hp for 15 total. Everything has diminishing returns.

[Nasty Peep]

Thanks for clearing that up. =)

[ŻABA JESTEM]

Does Ancient scepter stack? I'm kind of a noob
holla holla get da

[Akki]

Most items grant additional effects which are weaker compared to the first upgrade. Some of them have stacking caps, some of them don't. I think there's a website out there with more accurate descriptions on the stacking effects of some items. Here are some pointers from my experience:

Soldier's Syringe has its cap at 8 stacks.

Lens-Maker's Glasses leave you with 100% crit chance at 13-14 stacks. Perfect for critbuilds

Infusion: First gives +1 health per kill, every additional stack will add +0.5, rounded to the lower number. (Meaning 3 stacks = +2hp per kill, 5 stacks = +3hp, 6 stacks = +3hp etc)

Guardian's Heart: Increases shield health per stack while staying at the same recharge rate.

Forst Relic: First relic adds 3 shards per enemy kill, every additional stack adds another shard.

Heaven Cracker: Every additional stacks reduces the required attacks by 1 to trigger the piercing effect, meaning 4 stacks means every attack will be a piercing one.

Alien Head: Seems to be capped after 3 stacks at roughly 60% reduced cooldowns
Wicked Ring: Increases the cooldown reduction per crit by 1 per stack

Beating Embryo: 4 stacks = 100% duplication chance on use items
Rapid Mitosis: First stack reduces cooldown by 25%, second reduces THAT cooldown by 25% etc, 20-25 stacks will make the useitem spammable (Captain's Brooch + Explorer Key - enjoy!)

AFAIK the Ancient Scepter and Dio's Best Friend are the only items which have zero stacking bonuses.

[zeromaveric]

the wiki i suppose would state Soldier's Syringe capping at 8, but i've managed better. i ran with Huntress once and stacked up around 15-20 syringes, and her attack speed was much faster than what the supposed cap of 8 says. i watched someone livestream and stack over 1000 barbed wires, which went off screen killing anything that spawned, so i think some may have an increased cap than was reported, while others don't have a cap

[Akki]

Originally posted by zeromaveric:

the wiki i suppose would state Soldier's Syringe capping at 8, but i've managed better. i ran with Huntress once and stacked up around 15-20 syringes, and her attack speed was much faster than what the supposed cap of 8 says

The Huntress gains additional attack speed per levelup, unlike other classes, which scales with your Syringes. The Energy Cell also increases attack speed when at low health.

Next time I'm doing a 0 use item cooldown run I'll try stacking 500 Syringes using command chests and see what it does.

Edit:

Originally posted by zeromaveric:

i watched someone livestream and stack over 1000 barbed wires, which went off screen killing anything that spawned, so i think some may have an increased cap than was reported, while others don't have a cap

Some items have unlimited stack limits, it seems. The barbed wire gets increased damage and range per stack and has no stack cap as far as I'm aware.
I've stacked 1800 Crowbars today and managed to onehit Providence with a 4.5 million damage hit.