The Muddy Rudder is a bar located in Rivet City's lower deck.
There is a pool table on the top floor and a couple of chairs with Brock guarding the door. On both sides of the top floor are staircases that lead to the bar. Downstairs there are a few tables with random miscellaneous objects and food items like iguana-on-a-stick.
There are 31 shot glasses, the highest amount in a single area in the game.
- Following the Trouble on the Homefront quest (regardless of how it was completed), Butch can be found here. He will join the player character in their adventures if they have neutral Karma, otherwise, he will tell them that they don't have what it takes to be in his "gang."
- Trinnie will disclose the location of Belle's 'stash' after giving her 25 caps for drinks (done by giving 5 caps 5 times).
- Belle's stash is under the first bed on the left. It will be empty unless Trinnie tells the player character about it.
The Muddy Rudder appears only in Fallout 3.
Xbox 360 If the player manages to get Butch into the Muddy Rudder, they can talk to him but there will be no dialogue options. [verified]