Role-playing Games Stack Exchange is a question and answer site for gamemasters and players of tabletop, paper-and-pencil role-playing games. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is it possible to only upgrade the 2nd edition Armor/Attack to the 3rd edition rules? I love the rest of the game mechanics over the 3rd edition rules, but I don't like how you have to subtract for attacking. That part can be very confusing to new players.

If so, how would you go about doing it? I want to make sure the game is still balanced.

share|improve this question
up vote 9 down vote accepted

A quick and dirty tweak would be to flip THAC0 and AC related changes.

Armor adds to AC instead of subtracts, and every time your THAC0 would go down, you instead get a larger attack bonus.

5 AC (10-5) would then become 15 AC (10+5)

18 THAC0 would then become a +2 base attack bonus.

Both of those would equal a hit on a roll of a 13.

I obviously haven't tested this, but at quick glance it looks to me like it would preserve the balance of the game.

share|improve this answer
I like this solution. I'm going to try it out! Thanks! – Jason Heine Dec 20 '12 at 22:57
This worked out perfect! Everyone enjoyed it quite a bit! Thank you so much! – Jason Heine Dec 21 '12 at 4:39

Just make THAC0 and AC increase as the characters level up (the difference between 20 and the THAC0 is the to-hit bonus) and get better armour. The rest of the system with modifiers ect. will stay the same.

share|improve this answer
This is a good solution. I'm going to give it a shot and see. Thanks! – Jason Heine Dec 20 '12 at 22:58

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.