| D10 | NAME | DESCRIPTION |
| 1 | Dual nature | Choose a creature type. For effects targeting creatures by type, this species counts as its creature type and as the chosen creature type (whichever type allows an ability to affect them for abilities that affect only one type, and whichever is worse for abilities that affect both types). |
| 2 | Light blindness | This species has the light blindness universal creature rule. |
| 3 | Limited augmentation | One of this species’ normal systems for augmentations, chosen when you choose this weakness, can’t hold an augmentation. |
| 4 | Psychic sensitivity | This species takes a –1 penalty to saving throws against mind-affecting effects and takes +1 damage per damage die from mind-affecting spells, weapons, and other effects. |
| 5 | Susceptible to acid | When this species takes acid damage, it takes ongoing acid damage equal to its level as if affected by a weapon with the corrode critical hit effect (Fortitude negates). |
| 6 | Susceptible to cold | When this species takes cold damage, it becomes fatigued for 1 round (Fortitude negates); this doesn’t cause an already fatigued character to become exhausted. |
| 7 | Susceptible to electricity | When this species takes electricity damage, it becomes staggered for 1 round (Fortitude negates). |
| 8 | Susceptible to fire | When this species takes fire damage, it gains the burning condition that deals damage equal to its level (Fortitude negates). |
| 9 | Susceptible to sonic | When this species takes sonic damage, it is deafened for 1d4 rounds and has a 10% chance of also being stunned for 1 round (Fortitude negates both effects). |
| 10 | Uncommon allergy | Choose a material like silver or saltwater. Contact with at least a handful of the material deals 1d6 damage per round to this species. This effect is negated by the environmental protections built into most armor. |