There is a giant bomb in the middle of Megaton and someone has to take of it.
Finding this quest is easy, either by talking to Lucas Simms upon first entering Megaton or through Mr. Burke at Moriarty’s Saloon. Like many other quests in the game, your decisions in this matter will heavily dictate your gameplay throughout the game. This quest requires that players have at least 25 explosives skill in order to interact with the Megaton bomb (if you have a slightly lower skill, using drugs will help).

There are two ways to solve this issue, one is by disarming the bomb, which makes everyone happy (except for Mr. Burke) and result in you attaining plenty of positive karma, the gratitude of Megaton’s dwellers an most importantly, a home to call your own.
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