|This is an overview article, listing content appearing across multiple games.|
Fallout and Fallout 2
The Mysterious Stranger will appear occasionally in hostile random encounters to help you.
Fallout 3 and Fallout: New Vegas
The Mysterious Stranger will appear occasionally in V.A.T.S. to help you.
Increased chance of The Mysterious Stranger appearing in V.A.T.S., killing a single enemy instantly.
Increased chance of the Mysterious Stranger appearing when using V.A.T.S.
Fallout: The Roleplaying Game
After spending a Luck point, Mysterious Strange appears to assist in combat.