AC vs. TAC - what’s the difference


Playing the Game

Liberty's Edge

Pathfinder Roleplaying Game Charter Superscriber

P.16 of the Playtest Rulebook says:

To calculate her AC, add 10 plus her Dexterity modifier (up to her armor’s Dexterity modifier cap), plus her proficiency modifier with her armor, plus her armor’s item bonus to AC and any other bonuses and penalties that always apply.

To calculate her TAC, add 10 plus her Dexterity modifier (up to her armor’s Dexterity modifier cap), plus her proficiency modifier with her armor, plus her armor’s item bonus to TAC and any other bonuses and penalties that always apply.

So, whatˋs the difference?

Liberty's Edge

Pathfinder Roleplaying Game Charter Superscriber

But why? I could avoid being touvhed if I am dextrous. Maybe exclude the armor?


Yeah sorry, my mistake, armor should be excluded. Sleep deprivation is a bad thing :)


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Armors have a different AC and TAC bonus
For instance Fullplate gives +6 AC +2 TAC

Liberty's Edge

Pathfinder Roleplaying Game Charter Superscriber

Ah, ok. That explains it. A short note about this would‘ve been helpful on that page...


Also leaving Tac in the base game allows for further expansion because they still haven't confirmed one way or the other what they are doing with firearms.

Dark Archive

I really wish "AC" would be renamed to "Defense Class" and for guns we could get "Armor Class", so that your armor can protect you from bullets but you can't dodge them, as opposed to PF1 where you can dodge bullets but you a shield and armor don't help at all. That never made any sense to me, like: How slow are these bullets moving? And are they made of quarks?

Grand Lodge

Darkholme wrote:
I really wish "AC" would be renamed to "Defense Class" and for guns we could get "Armor Class", so that your armor can protect you from bullets but you can't dodge them, as opposed to PF1 where you can dodge bullets but you a shield and armor don't help at all. That never made any sense to me, like: How slow are these bullets moving? And are they made of quarks?

Can't use "Defense Class" because the DC acronym is already used.

Dark Archive

I don't really care what they call it, I just want the ability to target someone with attacks that can't be dodged but can be blocked by armor (because they're supersonic or faster).

CAC - Comprehensive Armor Class would work too.

Call it whatever you need to. It's the mechanic that I want.


I wish they would just replace TAC with refles save DC like they allready use for combat maneuvers. They are both just representing how well you can Dodge in slightly different ways.

Dark Archive

Passive saving throws have their place. I wouldn't mind just seeing Passive Dex/Fort/Will, and no more Touch AC.

But that doesn't help in a situation where you want dodging to not apply, only armor.

Not unless dodging becomes a separate step which can be denied.


Right like the old flat footed.


Darkholme wrote:

I don't really care what they call it, I just want the ability to target someone with attacks that can't be dodged but can be blocked by armor (because they're supersonic or faster).

CAC - Comprehensive Armor Class would work too.

Call it whatever you need to. It's the mechanic that I want.

How about if we just called it Armor Class? And for things that you can't dodge, we could have something called Flat-footed Armor Class?

Dark Archive

Sure, if guns always target flat footed AC that would work fine.

The connotation with flat footed is weird though, because it's more of a debuff condition because you've been rendered immobile than a different defensive score for attacks too fast to dodge.

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