Gravity and Acceleration

A change in gravity can be harmful. These rules describe health effects; see Different Gravity for the effects of gravity on common tasks.

Space Adaptation Syndrome ("Space Sickness")

Those who are not native to micro- or zero gravity ("free fall") may become nauseated and disoriented by the constant falling sensation. Roll against the higher of HT or Free Fall when you first enter free fall. The Space Sickness disadvantage gives -4.

On a success, you are unaffected. On a failure, you are nauseated (see Afflictions), which may trigger vomiting. If you begin to retch while wearing a vacc suit, you may choke; treat this as drowning (see Swimming). Roll against the better of HT or Free Fall every 8 hours to recover. If you suffer from Space Sickness, you cannot adapt!

High Acceleration

Make a HT roll whenever you experience a sudden acceleration ("G-force") of at least 2.5 times your home gravity. Treat a home gravity under 0.1G as 0.1G for this purpose.

Modifiers: -2 per doubling of acceleration (-2 at 5× home gravity, -4 at 10×, and so on); +2 if seated or lying prone, or -2 if upside down.

On a failure, you lose FP equal to your margin of failure. On a critical failure, you also black out for 10 seconds times your margin of failure.

A sudden acceleration may throw you against a solid object. If this happens, treat it as a collision with that object at a velocity equal to 10 × G-force of the acceleration.