Converting Adventures

Converting stats from other adventure games to the Drowned Isles is more of an art than a science. Nevertheless, here are some guidelines.

Saves

When players should make a save, map dexterity to Scramble, willpower to Command, and toughness to Muscle. More generally, go with whatever makes fictional sense.

Currency

Convert 1gp to 1 Siglos, or maybe divide by 10 if the numbers seem crazy.

B/X or otherwise “compatible” Stats

D&D-y, old school statblocks. Hypothetically will also work with a modern D&D derivative, but I’m not sure the numbers will feel right

Converting Health

• Start with 1 Injury slot.
  • Convert any health to HD, rounding up (discarding it if there’s less than HD/2 health)
  • If the creature has 3HD or less, add 1 Guard for each HD
  • If it has 4 to 12 HD, give it 3 Guard and Injury slots equal to HD / 3 (round down; leftover HD go to Armor)
  • If it has 13 HD or more, give it 4 Guard and Injury slots equal to HD / 4 (round down; leftover HD go to Armor)
• Subtract 10 from ascending AC and multiply it by HD (so 15 AC means HD * 0.5). Give the creature that much Armor, rounded naturally
• Feel free to move health between Armor and Guard. Generally one Armor is worth an amount of Guard equal to Wound slots (because they get refilled on a Wound), so converting one Armor to Guard makes a creature stronger and converting one Guard to Armor makes it weaker.

Converting Damage

• Find the average damage of an attack (the average roll of a die is its “face value” / 2 + 0.5)
• Calculate Harm by dividing by 4, rounding up
• If you want to “zhuzh” up an attack or effect without increasing the Harm (which is not very granular), add an Effect

Mark of the Odd Stats

• For every 2.5 HP they have, take 2 Guard
• Start with 1 Injury slot at 8 Strength and gain another for every 4 Strength. If Strength is less than 8, subtract 1 Guard.
  • Feel free to shift some Guard to into Injuries if the numbers are deeply unbalanced - though remember that each Injury is worth all of a character’s Guard.
• For every point of Armor they have, take 2 Armor.
• d4 attacks deal 1 Harm; d6 and d8 attacks deal 2 Harm; d10 and d12 attacks deal 3 Harm. For d8 and d12 attacks, consider an Effect