Being impaired represents various states of physical hindrance.

Impairment Levels

Impaired

Off balance, encumbered, held by one leg, surprised, etc.
  • +2 to hit target
  • -1 movement
  • -1 AGL saves

Badly Impaired

Stunned, both legs held, partially bound, slowed.
  • +4 to hit target
  • -2 movement
  • -2 AGL saves

Restrained

Held, paralyzed.
  • +6 to hit target
  • 0 movement
  • -3 AGL saves

Defenceless

Asleep, unconscious.
  • +8 to hit target in combat, +16 outside of combat
  • +1 crit chance
  • All hits count as telling blows
  • 0 movement
  • Can't take actions or reactions
  • Falls prone
  • Fails any AGL or Steadfast saves
  • These bonuses stack with the prone bonuses