A colony is the backbone of many survivors. By joining a colony, you increase your survival rate. By working as one you can get win firefights​ with raiders, hold off zombies while you forage, and many other things. Unfortunetly, it's not all Good. A large colony often develops rivals, theives , and bombers that ruin all your fun. Some common tools for colonies are the 870mcs (easy to get when there at least 3 of you) the colony gate (easy to make instead of a new gate every 5 minutes) and much more complicated things such as electricity . An example of a colony is the "Survivors" and the "Outsiders". The Survivors are not as violant or not violant at all, unlike the Outsiders.