I must create a system, or be enslaved by another man's. I will not reason and compare: my business is to create.

- William Blake

Wednesday, October 02, 2024

Single attack/damage roll (kubular), but divided in half

I think I discussed that idea at the time, but I didn't write down this exact implementation. Read that post before this one! This method has several advantages over the usual D&D method.

Here is the deal: no more damage rolls.

Just roll 1d20 plus modifiers and subtract AC, then divide by two: this is the total damage (minimum 1).


Modifiers include attack bonus and weapon rating (WR).

WR usually goes from -3 (unarmed) to +3 (heavy 2H-weapon).

A dagger has +0 WR; other weapon are easy to figure out (d6, d8 and d10 become +1, +2, +3).

Improvised weapons, gauntlets, etc, have a WR of -1 or -2.

Lets assume ascending unarmored AC 11 (like BFRPG).

A dagger hit deals an average of 3 damage against unarmored targets, a bit over the original (nice!).

A 2H-sword, OTOH, deals 3.77 damage on a hit, but hits more often than in the original BFRPG; the DPR (damage per round) is about 2.45, a bit HIGHER than the usual 2.25.

What about heavy armor? Say, Plate mail is AC 17 in BFRPG. 

To hurt someone in plate with bare hands, you need a natural 20 (realistically, you'd be more likely to hurt your hand... add some grappling rules to your game!).

A dagger will only deal 1.5 points of damage. 

A 2H sword deals an average of 2.5 damage (originally 4.5), but again the DPR is 0.8, not far form the original (0.9).

I'd definitely combine it with some "armor defeating" rules for maximum effect. E.g., cutting weapons deal 1 point of additional damage if they hit, maces get +2 to-hit against chain or heavier, axes are +1 against everybody, etc.

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