Date:         Mon, 30 May 1994 02:31:06 -0400
Sender: Mythus Fantasy Roleplaying Game List <[MYTHUS L] at [BROWNVM.brown.edu]>
From: "Mike \"Kurgan\" Phillips" <[m s phil] at [BIRDS.WM.EDU]>
Subject:      Mythus: AD&D to Mythus Prime conversion

(note: the rules mechanics noted below are (c) TSR these days, I think.  The
       use thereof doesn't constitute any attempt to violate these in any way,
       as possession of the rulebooks is sort of necessary to use these :-) )

These are some conversions I worked up to make running some of the more
interesting adventures from DUNGEON for my in-laws and such.

AD&D TO MYTHUS PRIME:

(The conversions roughed out below assume familiarity with both rules systems)

Character Conversion:

    To generate the new HP's TRAITS, use the following guidelines:

    Ability Score(s)                TRAIT
    -----------------------------------------
    (Int x 3) + 6                   Mental
    Str+Dex+Con + 6                 Physical
    ((Wis + Cha) x 0.5 x 3) + 6     Spiritual

    (The reason for the +6 is to allow an Intelligence of 18 to equal
     a Mental TRAIT of 60, the maximum for a starting character; if you
     are translating a non-starting character (i.e. an experienced
     adventurer), you might consider dropping the +6 and tailoring the
     TRAITS through judicious use of AP's, as below)

    Convert the Class into a Vocation, and re-build the skills as per a
starting HP.  It might be best to use similar skills to NWP's chosen when
selecting the bonus K/S areas.  Suggested conversions:

    AD&D Class          Mythus Prime Vocation
    Fighter             Merc/Soldier
      Paladin             Cavalier(1)
      Ranger              Merc/Soldier(2)
    Cleric              Wiseman/wisewoman
      Druid               Wiseman/wisewoman(3)
    Thief               Thief
      Bard                Mountebank
    Wizard              Alchemist(4)
      Illusionist         Astrologer(4)

    (1) Take Priestcraeft and Religion as bonus K/S Areas to preserve feel
        and powers
    (2) Take Botany, Animal Handling, and Subterranean AErth as bonus K/S
        Areas
    (3) Take Botany and Survival as bonus K/S Areas
    (4) These are very loose translations, as the magic systems are not
        all that terribly compatible; as an alternate, one can use the
        Mage Vocation, already posted to the list (and a determined JM can
        of course assign schools (ex grey for an illusionist) to match
        specialists)

    Assign 10 AP's for every level beyond 1st that the character has advanced,
dividing them up as appropriate for the character.  Equipment translates
normally, but magic items are much harder to handle (JM discretion, but
magical weapons typically recieve a +5% bonus to attacks for each plus, and a
+1 to damage for each plus).

Monster Conversion:

    To determine Physical TRAIT, take the Hit Dice and multiply by 32, adjust
as seems appropriate (for instance, an Orc probably should have around a 40
instead of a 32 for average), then adjust up or down by 4 for each plus or
minus (ex, a goblin (HD 1-1) would have a P TRAIT of 28).  Mental TRAIT can be
generated by cross-referencing the intelligence level with the chart at the
beginning of the Monster Manual/Monstrous Compendium and treating as above.
    Armor absorption should be handled as 2 points per point of AC beyond 10
(i.e. an AC of 5 would grant 8 points of absorption, or an AC of 0 would grant
18 points of absorption).  Of course, use armor ratings if normal armor is
indicated.
    Damage translates loosely by comparing the equivalent damage in weapons.
So, 1d10 (a two-handed sword) of bite damage can be translated as 6D6, or a
1d8 translates as 4D6 (long sword).
    Other abilities (magic, special attacks) should be determined
individually.

I have used these guidelines successfully to run several DUNGEON adventures in
Mythus Prime, and they've worked well so far.


    Mike Phillips
    [m s phil] at [birds.wm.edu]