The Dart Cannon is a weapon in Fallout 3. It is found near the capital city of Washington, D.C.. The cannon is located inside a factory that makes military weapons and equipment during World War II. It is available to the player from around the time of their first quest, which involves them helping a community radio station repair its transmitter tower. Using the Dart Cannon is easy. All the player has to do is point it in the direction they want to shoot and pull the trigger. There are two types of darts: regular and explosive. Explosive darts explode on contact with anything other than air, causing damage to everyone within a small radius. Regular darts only explode if they hit something solid; otherwise, they work just like sniper darts in that respect. They will not cause damage to anyone who isn't intended as their target. However, if you do hit someone with a regular dart, they will take additional damage depending on how close you are when you fire it. You can find the Dart Cannon at any radio station across the Commonwealth. Each one has its own unique look and flavor for shooting regular or explosive darts. Some prefer to use regular darts while others go for the power-up.