Multiple hits penetration

[Henchman99942]

Do multiple hits stack to penetrate DR and cause damage?

How about for things like lasers with recoil = 0?

[sir_pudding]

Originally Posted by Henchman99942

Do multiple hits stack to penetrate DR and cause damage?

No. But see Corrosion for attacks that do reduce DR for subsequent attacks.

How about for things like lasers with recoil = 0?

That was 3e. Nothing has recoil "0" now (it wouldn't make sense in 4e rules) and lasers don't combine penetration anymore either.

[Tomsdad]

Originally Posted by sir_pudding

No. But see Corrosion for attacks that do reduce DR for subsequent attacks.
.

And ablative and semi ablative for defences that are noticeably reduced by attacks, so are reduced for subsequent attacks.