All creatures in ITD&TD have 8 Attributes: Brawn, Heartiness, Agility, Precision, Logic, Reason, Savvy, and Presence. Each of these scores help determine your character's overall ability to do things.
These scores are listed as numbers between 1 and 30. Attribute Scores determine 2 things, the most important thing being your Attribute Modifier, which is used in most calculations.
The other thing that Attribute Scores are used for is the minimum dice result you gain when making Skill Tests, and only Skill Tests. The minimum result you can get is your Attribute Score - 12. To handle this, you do not re-roll, rather simply count a lower result as a higher one. If you have an 18 attribute (6 minimum dice roll) and you roll a 2, treat the dice result as a 6 instead.
If an attribute ever gets higher than 23, you still only can have the minimum result of a dice be 10.
For example, a creature with a Brawn Score of 15 has a Brawn Modifier of +1. Thus, they gain a +1 Attribute bonus to all d20 tests using their Brawn. Additionally, if the are making a Skill Test, a d20 result of 1, 2, or 3 count as a 3. In other words, the minimum Skill Test result they can earn when testing Brawn is 4 (3 for the d20, and +1 for their Brawn Mod).
| Score | Modifier | Score | Modifier | |
|---|---|---|---|---|
| 2 | -4 | 8 - 12 | 0 | |
| 3 | -3 | 13 - 15 | +1 | |
| 4 - 5 | -2 | 16 - 17 | +2 | |
| 6 - 7 | -1 | 18 - 19 | +3 |
Your attributes can apply to a wide range of things, but players and GMs should strive to use the right attribute for the right task. For example, if you are attempting to listen at a door, you should test your Reason, and not your Brawn.
Strength of limb, muscle, and raw might. This attribute governs when feats of strength need to be called upon.
High Brawn characters tend to be strong, and thus tend to be more suited to wade into combat, swinging large weapons, breaking down doors, and lifting heavy objects.
Low Brawn characters tend to be weak, struggling with heavy loads, unable to effectively use heavier equipment, and easily pushed aside in combat.
You will apply your Brawn modifier to both to-hit and damage rolls made with most melee and thrown weapons. Your Brawn modifier is also used to determine your encumbrance and how much you can carry. Your Brawn modifier is also used to determine your Force saving throw, which is used to stand firm when effects attempt to force you to move, and your Overpower Save DC, which is used when you attempt to physically force a foe to do something against their will.
Stamina, endurance, and resistance to effects against the body. This attribute governs when your toughness is called upon.
High Heartiness characters tend to be resilient, and thus have a higher capacity to receive damage, shrug off illness, and are not easily fatigued.
Low Heartiness characters tend to be frail, sickly, or delicate. They often succumb to illness, and are quicker to tire.
Your heartiness score (not modifier) impacts your maximum grit, and is the sole attribute used to calculate maximum hit points. Your heartiness modifier applies to your Resilience saving throw, which is used when you are rejecting foreign poisons and diseases, as well as resisting outside effects like extreme heat or cold.