How protected the character is from being hit by any attack. Lower values are better. Ac is based on the character race table and is modified by the DEX (AcB column in table primary stat effects) and current armour worn. For characters that cannot wear armour, Ac improves as their level increases (see section statistics calculation.)
The base amount of AC a character gets is based on the Dex bonus listed below
| DEX points | DEX Bonus to AC |
|---|---|
| 1 | -3 |
| 2 | -2 |
| 3 | -2 |
| 4 | -1 |
| 5 | -1 |
| 6 | -1 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 2 |
| 18 | 2 |
| 19 | 2 |
| 20 | 3 |
| 21 | 3 |
| 22 | 3 |
| 23 | 4 |
| 24 | 4 |
| 25 | 4 |
| 26 | 5 |
| 27 | 5 |
| 28 | 6 |
| 29 | 6 |
| 30 | 7 |
Armour class (Ac) For characters that cannot wear armour (ex. Fireborn), their Ac can improve as their score increases. The calculation for Ac is then:
Class Ac - level/3
The value of the character Ac may decrease to the value of -10. After that, no more improvement is made regardless of earned experience. The overall level is always used for this calculation.