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Things are pretty hard, but it's getting better. Thanks again. You really talked some sense into me.Leo, when asked how the habit's going after quitting

Leo's Drug Habit is an unmarked quest in Fallout 3.

Quick walkthrough

Unmarked Quest: Leo's Drug Habit
Speak with either Doc Church, Lucas Simms, or Mister Burke about Leo's drug habit.
Speak to Leo Stahl about his drug problem.
Convince him to quit his addiction, then clean out his stash.
Go the first direction, but mention "never having thought about it that way".
Blackmail him about keeping his drug habit quiet.
Reward: 100 XP, good Karma, and the key to Leo's stash.
Reward: Leo will deal his chems.
Reward:Bad Karma and Leo will deal his chems

Detailed walkthrough

Obtaining the quest

By either talking to Doc Church, Lucas Simms or Mister Burke, or by hacking Colin Moriarty's terminal in his saloon, one can open up a dialogue option with Leo Stahl to talk about his chem habit. If the Lone Wanderer asks Doc Church about the people of Megaton, then uses the Speech or the Medicine dialogue option, he will talk about Leo Stahl's addiction to Jet.

Alternatively, in the quest The Power of the Atom Mister Burke can express concern about not being able to do it, and he will mention Leo Stahl's chem habit.

Completing the quest

Go talk to Leo Stahl in the Brass Lantern during the day or in the water processing plant at night and ask him about his chem habit.

Good Karma path

The good Karma way is to use the Speech dialogue option to quit his addiction, he will then ask to clean up his stash in the water processing plant. It will give 100 XP (unmodified, plus 10 from the Speech check), good Karma and his key to a stash of chems and caps in the desk at the water processing plant. However, even as he is claiming to be cleaning up, it appears that he still uses drugs as he can be found in the water processing plant at night. When asked what he is doing there in dialogue, he will respond nervously and claim that he is doing nothing. He will still go to the plant even if the Lone Wanderer has raided his stash, leaving it unclear why he goes there.

Andy Stahl's attitude towards the Lone Wanderer will become more friendly if this path is chosen. Andy will remark that his brother "means the world to him," and that the Lone Wanderer may be the only reason he is still alive.

Neutral Karma path

Initially choose the "good" path choice, but do not choose the Speech challenge option. Instead, say "I never thought about it that way." Leo adds the "Note from Leo Stahl" to your Pip-Boy and will now be available as a chem dealer during his evenings in the water treatment plant. This choice does not affect Karma nor gives an XP reward, but does enable a conveniently located chem source in Megaton.

Evil Karma path

Alternatively, the bad Karma way is if Leo is asked "what it is worth to [him] to keep [your character] quiet" he will start dealing chems, and then give bad Karma. Later, he can be killed and looted for the key to his stash from his corpse; more bad Karma is obtained for killing him.

Upon taking the Bad Karma path, Leo gives up a note reminding about the deal.

Leo's stash

The contents of the stash always stay the same but the number is random. The stash can have any number of:

  • Bottle caps (Always more than 60 caps)
  • Buffout (not systematically)
  • Med-X (not systematically)
  • Mentats (systematically, never less than 5)
  • Psycho (not systematically)
  • Stimpaks (systematically, always at least one)
  • Jet (not systematically)


Andy Stahl, Leo Stahl's brother, immediately changes his attitude towards the Lone Wanderer if they complete this quest without Leo coming to harm.