Making money in Fallout 3 is essential for acquiring gear, weapons, and supplies to survive and progress in the Capital Wasteland. There are several methods to generate income, each with its advantages and drawbacks:
1. Looting: Exploring the Wasteland and scavenging containers, corpses, and abandoned locations yield valuable items that can be sold to vendors.
2. Selling Items: Gathering and selling items like weapons, ammo, food, and junk to vendors is a reliable way to make money.
3. Completing Quests: Undertaking and completing quests for various factions and characters often reward you with caps, the in-game currency.