OSR D&D 5e OSR backwards compatibility

[Nagol]

I posted a follow up to my prior article. Be gentle.

http://ragingowlbear.blogspot.com/2014/06/d-combat-math-internet-stikes-back.html

Looking at your math, it looks like you didn't take the AD&D Fighter's multiple attacks per round into account at the higher levels. Don't forget the Fighter gets 3 attacks / 2 rounds at 7th level rising to 2 attacks per round at 13th (see chart on page 25 PHB). That will nudge the 10th level Fighter's expected damage up 50%.

 

[Nagol]

Looking at your AD&D math more your math is off. Here is the corrected math adding 2 new levels 7 and 13 to show the change when extra hits come into effect:

	AC 5	AC 0
1	19.25	5.5
5	30.25	16.5
7	53.625	33
10	61.875	41.25
13	104.5	77

 

[MerricB]

For fun, I picked up the Monstrous Compendium Annual Vol 1 and decided to do some graphs based on the ACs and XP values there. I left out a lot of dragon ages, but got some interesting results:

http://merricb.wordpress.com/2014/06/11/monstrous-compendium-annual-volume-1-armour-class-analysis/

And here are my discussions of ACs in the early game:
http://merricb.wordpress.com/2014/06/08/a-look-at-armour-class-in-original-dd-and-first-edition-add/
http://merricb.wordpress.com/2014/06/05/a-historical-look-at-armour-class-second-edition-add/

Cheers!

 

[MartyW]

Looking at your AD&D math more your math is off. Here is the corrected math adding 2 new levels 7 and 13 to show the change when extra hits come into effect:

    AC 5    AC 0
1    19.25    5.5
5    30.25    16.5
7    53.625    33
10    61.875    41.25
13    104.5    77

Thanks! I thought AD&D Fighter got extra attacks, but I missed that in the book for some reason. Been a long while since I played AD&D.

 

[MerricB]

Thanks! I thought AD&D Fighter got extra attacks, but I missed that in the book for some reason. Been a long while since I played AD&D.

I expect I know exactly why you missed it in the book - in first edition, it's at the end of the section on Rangers!

Cheers!