Wednesday, July 13, 2011

d20 Chainmail weapon vs. armor

Below I've excerpted a few of the weapons and armor on the Man to Man (i.e. weapon vs. armor) chart from Chainmail. I converted the 2d6 target numbers to percentages, then rounded them to the nearest 5% to make d20 targets. The results were nowhere near what I expected.

.
WeaponNo ArmorLeather/ PaddedShield OnlyLeather & ShieldChainChain & Shield
.
1Dagger6+8+12+12+14+18+
.
1Hand Axe8+8+12+14+18+18+
.
3Mace12+12+12+14+12+12+
.
4Sword8+12+12+14+12+14+
.
4Battle Axe12+12+12+12+8+8+
.
8Spear12+12+14+14+18+18+
.
11Mtd. Lance4+4+4+4+6+8+

I hope the formatting works out. I did the chart in google docs then exported to HTML, because I have no idea how to do a simple printscreen on my wife's Mac. Anyway, if you want to check my math or finish the chart here's the original:

Why no entry for a simple club or quarterstaff?

13 comments:

  1. You just broke my brain.

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  2. I didn't want to believe it, so I calced a few as well. Your math looks correct.

    Again, the shields are making a big difference, at least for the non-plate armor classes.

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  3. Command-Shift-3 will give you a shot of the entire screen. Command-Shift-4 will let you click and drag the area of which you want a picture. I swear there's a way to take a picture of just the focused window, but I can't figure it out right now. I use Command-Shift-4 constantly when I want to excerpt a bit of a book for my players.

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  4. What hurts my brain are the listings for Battle Axe, Halbard, and 2 Handed Sword.

    Those three weapons ignore shields (at least until plate armor). They also make it easier to hit foes wearing Chain than those who are Unarmored or in Leather. Is that to reflect a loss of mobility in the heavier armor?

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  5. 2d6 is going to have a more bell-shaped curve than straight 1d20, though. The conversion will probably have more highs and lows than the original.

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  6. In addition to Adrian's Mac-fu, there's an application hidden in the Utilities folder called Grab with a wide variety of screen capture options.

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  7. There's presumably no club or quarterstaff because there are no battlefield units in Chainmail that use those weapons. I believe archers are armed with daggers for self-defense.

    These numbers are not so strange to me. Remember that these are "to kill" target numbers. An unarmored target has almost as good a chance to avoid getting killed by a 2H sword as a dude in plate with a shield (i.e., not very good). Heavy armor is worse than useless against heavy crushing weapons, because it weighs you down without doing much to absorb blows that heavy. Conversely, a dagger is as good as anything else against an unarmed target, but is useless against a man in plate.

    I really like this chart from Chainmail. It roughly sets up a system whereby all weapons are equally useful against an unarmored man; anything sword-sized or larger is good against a man in leather or chain; and only heavy weapons are fully effective against a man in plate.

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  8. Wow! I had no idea that Grab existed. Thanks, Tyler!

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  9. Anonymous5:24 PM

    I did this a couple weeks ago, though I averaged all the numbers first to get a base to-hit for each armor type and extrapolated weapon modifiers from that.

    http://duckduckdie.wordpress.com/2011/06/22/chainmail-and-weapon-modifiers/

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  10. Anonymous7:58 PM

    katre:
    He converted the 2d6 to percentage values first, which must have taken into account the curve, before rounding to 1-20 values. I assume, anyway, because otherwise there would be no good reason to add the extra step of converting to percentage. And this is Jeff we're talking about. Dude knows of the curve.

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  11. Command+Shift+4, then spacebar, then click a window will take a screenshot of a window only and save it as a file to the desktop.

    I'm becoming a Mac guy as well. Drove me to drink in the beginning though.

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  12. There was a Strategic Review or two that added some more weapons. I’m pretty sure quarterstaff was among them.

    There’s an argument to be made that if you’re not using the weapon class rules, you might want to tweak the numbers a bit. It’s been long enough since I looked at it, though, that I’ve forgotten the details.

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  13. As Picador says, perhaps because clubs and staffs would have only been used in a civilian context.

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