Dungeons and Dragons: After the Fall
Characters must roll to save against radiation or gain a level of exhaustion. The DC depends on the intensity of the radiation and the duration of exposure.
Low Radiation: Less than 3 SV; DC 10 Con Save +1/roll (Roll Every Day)
Medium Radiation: 3-6 SV; DC 15 Con Save +1/roll (Roll Twice a Day)
High Radiation: 6-10 SV; DC 20 Con Save +1/roll (Roll every hour)
Extreme Radiation: 10-50 SV; DC 25 Con Save +1/roll (Roll every minute)
Lethal Radiation: Greater than 50 SV: DC 30 Con Save +1/roll (Roll every Round)
Recovery from Radiation:
For each 24 hour period of intensive medical treatment a trained physician may roll their medicine skill to reduce a character’s exhaustion level. The DC is 15, +5 for each level of exhaustion beyond the first.
Healing Magic can help in recovery. Lesser Restoration instantly recovers 2 exhaustion levels. Greater Restoration recovers 4. Heal recovers all. Regenerate reduces the time for medical treatment to every 6 hours. A paladin’s lay on hands ability can remove 1 level of exhaustion for 10 points of healing ability.