A couple weeks back, my daughter and I were chatting about games, and I realized that she hadn’t played a wargame yet. I thought at first about brushing up on the old Warhammer Fantasy Battle rules, but then decided it would be fun to use Gygax’s Chainmail rules. I’d never used them before, so it was an opportunity for my daughter and I to both learn something new.
First step – read the rules. Second step – try to reorganize the rules so I could understand them. What the founders of the hobby had in creativity they made up for with a lack of organization! In the process of learning the rules, I discovered some things about old school D&D while I also gained an appreciation for those rules. What follows are a few takeaways for those who dig the old school, and those who have never read Chainmail. FYI – I’m using the third edition rules, which I found online.
Figures in the game are divided into two sorts, each using a different combat table. The lowliest of the figurines are the regular troops. These fellows use one of two combat tables. If each figurine counts as 10 or 20 warriors, you use the mass combat table. On this table, you roll 1d6 (one dice is easier when rolling lots of dice for lots of figures), and have one of six ratings for attack and defense – light foot, heavy foot, armored foot, light horse, medium horse and heavy horse.
The closest thing in later editions of D&D to these figures is the men-at-arms, bandit (brigands), etc. In the first edition of D&D, though, these fellows show up on the character class combat tables – Men, or Men +1.
If each figure represent a single warrior, you use the man-to-man combat table. On this table you roll 2d6, with your chance of hitting based on the attacker’s weapon and the defender’s armor. This isn’t completely different than the mass combat table, but is more fleshed out – lots of weapon types, lots of armor types.
Beyond these normal warriors, you have the monsters, heroes, super heroes and wizards from the fantasy supplement. Wizards get five “levels” – seer, magician, warlock, sorcerer and wizard. Heroes fight as well as four men, and thus in D&D they are fourth level fighters. Super heroes are eighth level fighters, because they fight as well as eight men. Wizards fight as well as two men. There are special heroes called rangers – who are essentially heroes +1 (which is why AD&D rangers have two hit dice at first level).
The hero-types can attack using the mass combat table or man-to-man table against normal troops, or they can use the fantasy combat table to fight other fantasy figures. Against normal troops, heroes take 4 kills to kill, and super heroes 8.
With hero-types, you also see the origin of saving throws. Several monsters have special abilities that the hero-types can ignore if they roll above a number on 2d6.
On the fantasy table, the chances to kill are based on the type of attacker and type of defender. If a balrog is attacking a dragon, it needs to roll an 11+ on 2d6 to kill it. The dragon needs a 6+ to kill the balrog. Elves and fairies use this table (sort of) if they have a magic sword. This suggests that the inability of some monsters to be damaged by anything other than magic weapons or monsters with lots of Hit Dice originates here.

You better leave this one to me guys
OD&D Chainmail Style
If we were to carry these rules over to D&D, we would find some interesting changes. Combat between humanoids would pit weapon versus armor, not attack bonus vs. Armor Class. PC’s above first level would dominate lesser foes by the number of hits it takes to kill them, and by the number of enemies they can attack. This is an important point that often gets lost in later editions. Melee rounds are one minute long. The number of attacks a figure gets are not a representation of how many times he can swing a sword during the round, but rather an abstraction of the number of potential chances he has to inflict damage on an opponent.
In mass combat, hero-types and monsters can attack multiple targets, but not necessarily make multiple “attacks” against a single target. This is reinforced by the fact that in fantasy combat, pitting heroes and monsters against one another, the entire combat is resolved with a single attack roll by each combatant, and no multiple hits are required to kill – it’s just one and done.
Bringing this concept into D&D could be interesting. A monster with two claw attacks and one bit attack can use them to attack three foes, but can only use any one of these attacks against a single figure.
Levels
The fantasy combat table does include the concept of improved attack ability, even though the mass combat table does not. For example:
Figure | Wight | Giant | Dragon | Balrog |
Hero | 6 | 11 | 12 | 11 |
Super Hero | 4 | 9 | 10 | 9 |
Wizard | 6 | 11 | 9 | 7 |
This table shows the target number (equal to beat) on 2d6 a figure needs to destroy the listed foes. Comparing the hero to the super hero, you see the super hero effectively gets a +2 bonus on his attacks. This translates into different percentage increases due to the nature of rolling 2d6, as opposed to 1d20. It averages out to a +25% bonus across the board (including monsters not on the table above), or a +5 bonus to hit on 1d20. Interestingly, the wizard attacks wights and giants as well as a hero, but is better than a super hero at defeating dragons and balrogs.
Improvement in “level” is more obvious for wizards in Chainmail than for heroes/super heroes. There are the five levels of magic-user, from seer to wizard. In D&D, seer is a title for 2nd level magic-users, magician for 6th level, warlock for 8th level, sorcerer for 9th and wizard for 10th.
With each level, you gain more spells, a greater range for your spells, and your chance to successfully cast spells increases. Yes – chance to cast spells. Spells come in six compexities, with a target number that must be rolled on 2d6 for the spell to happen immediately. Failure by 1 means the spell goes off in the next round. Failure by more than 1 means the spell casting fails completely.
When Chainmail became Dungeons & Dragons, they combined the idea of improved attack ability from the fantasy combat table with the multiple attacks/kills concept in the form of Hit Dice/hit points. The weapon vs. armor idea survived in AD&D as the weapons vs. Armor Class table that most of us ignored as kids, and as the combat system used in Gamma World.
In retrospect, the introduction of levels (and experience points) was a very cool idea, bringing a facet to the game absent in Chainmail. Rather than just being a “hero” wandering around a dungeon looking for treasure, you got to play out the building of a legend, from humble origins as a man-at-arms to eventual super hero status. That innovation is probably what helped build Dungeons & Dragons itself into a legend.