The Wasteland Survival Guide: Completed "The Wasteland Survival Guide." - 20G
One of the first towns that everyone comes across is Megaton, and talking to Moira Brown in Craterside Supply will unlock this long side quest. If you're feeling chatty, you can potentially persuade Moira to give up on her guide, unlocking the achievement with a minimal amount of work!
Those!: Completed "Those!." - 20G
Old-school horror movie fans will recognize this as an homage to the classic nuclear cautionary tale "Them!" about a town that's overrun by massive ants. You'll bump into a lad named Bryan Wilks somewhere around the town of Grayditch, which is just a few hundred yards from the Super-Mart put on your map by the aforementioned Moira Brown. Be warned: The Fire Ants are tough!
The Nuka-Cola Challenge: Completed "The Nuka-Cola Challenge." - 20G
As you play through Fallout 3, you'll likely find dozens of Nuka-Cola bottles in vending machines and abandoned stores, but this side quest tasks you with finding the more elusive, bright purple Nuka-Cola Quantum bottles. It actually pays to just collect the Quantum bottles as you play through the rest of the game, then head to the small town of Girdershade in the southwest corner of the map directly north of the Dunwich building. There, you'll be asked by Sierra to find 30 bottles from the Nuka-Cola bottling plant, but she's happy to take any other ones off your hands if you want to stock up before visiting.
Head of State: Completed "Head of State." - 20G
By heading to the Temple of the Union that's directly northwest from the town of Canterbury Commons, you'll meet a group of escaped slaves who want to restore the Lincoln Memorial to its former glory. There are a couple of different ways to complete this quest depending on where you want your karma levels.
The Replicated Man: Completed "The Replicated Man." - 20G
As you complete the main story, you'll enter the floating town of Rivet City. Once you're there, talk to the morally dubious Dr. Zimmer. He'll ask you to track down a rogue android that doesn't know it's not human ("Blade Runner" anyone?), but you'll have to chance to decide its fate for yourself.
Blood Ties: Completed "Blood Ties." - 20G
Anyone who played through Oblivion will notice the similarities to the vampire quests in that game, although you get a nicer reward for your troubles this time out. When you make it to Megaton, have a chat with Lucy West about the status of her family in Arefu. She'll mark the town's location on your map. If you can play nice with The Family, you'll be rewarded for your negotiating skills.
Oasis: Completed "Oasis." - 20G
Like the Painted Troll quest in Oblivion, Oasis should be one of the Fallout 3 side quests that fans remember most fondly. It's a tough one to find and reach, as you've got to walk all the way to the northernmost area of the map, where you'll find a path leading into the hills. Be sure to say hi to Harold for us!
The Power of the Atom: Completed "The Power of the Atom." - 20G
You've probably all heard and read stuff about the town of Megaton and the moral quandary that you're thrust into soon after arriving in town. It's a fairly black-and-white ethical decision, but you should be happy to know that you'll have a sweet new pad no matter which karmic direction you choose.
Tenpenny Tower: Completed "Tenpenny Tower." - 20G
The easiest way to find Tenpenny Tower is to speak with Mister Burke in Megaton, then agree to blow up the town. If you want to be a nice guy or gal, just head to the southernmost part of the map and look for the tower rising over the Wasteland -- you can't miss it. When you get there, speak to the Ghoul at the gate before heading inside and talking to Gustavo.
