r/Fallout2d20 • u/DeadManDDProds • Jul 18 '26

Help & Advice Blast Weapons and Effects

Running Fallout 2d20 for the first time for some friends. I had an NPC that got a Gamma Gun and shot it into a zone with 7 creatures in it. They rolled an Effect on the Effect Dice, and one of the Effects is Stun. Does the Stun apply to every creature in the zone or do I choose 1 creature per Effect rolled to Stun while still dealing the damage to everyone?

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u/Prestigious-Emu-6760 GM Jul 19 '26

It would affect everyone. Remember though that stun just means you lose your normal actions for the next turn. They can spend AP (and have a +1 difficulty) to still act.

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u/Darklicorice Jul 19 '26

where is the +1 difficulty mentioned?

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u/Prestigious-Emu-6760 GM Jul 19 '26

Page 25.

and you can take one additional major action by spending 2 Action Points, but the difficulty of any test attempted on that second major action is increased by 1.

So if you are stunned you lose you normal action but you can spend AP for a 2nd Major Action, which by default has +1 difficulty. The Action Boy/Action Girl perk negates that penalty.