The Abomination Vault Campaign uses the following house rules:
1. Automatic Bonus Progression – https://2e.aonprd.com/Rules.aspx?ID=2741
Table 4-11: Automatic Bonus Progression
| Level | Benefits |
| 1 | — |
| 2 | Attack potency +1 |
| 3 | Skill potency (one at +1) |
| 4 | Devastating attacks (two dice) |
| 5 | Defense potency +1 |
| 6 | Skill potency (two at +1 each) |
| 7 | Perception potency +1 |
| 8 | Saving throw potency +1 |
| 9 | Skill potency (one at +2, one at +1) |
| 10 | Attack potency +2 |
| 11 | Defense potency +2 |
| 12 | Devastating attacks (three dice) |
| 13 | Perception potency +2; skill potency (two at +2 each, one at +1) |
| 14 | Saving throw potency +2 |
| 15 | Skill potency (three at +2 each, one at +1) |
| 16 | Attack potency +3 |
| 17 | Ability apex; skill potency (one at +3, two at +2 each, two at +1 each) |
| 18 | Defense potency +3 |
| 19 | Devastating attacks (four dice), Perception potency +3 |
| 20 | Saving throw potency +3; skill potency (two at +3 each, two at +2 each, two at +1 each) |
2. Full access to 1st level feats
–> Each PC knows all 1st level class feats.
–> Each PC knows all 1st level skill feats for which they are trained in the corresponding skill.
3. Hero Points Awarded
–> Hero Point awarded to any PC that takes a Critical Hit or Rolls a 1 on an attack roll. (Must keep the critical miss)