The world of Heroes Legends is technologically advanced and many people enjoy modern luxuries. Some countries are more technologically advanced than others, due to either an increased amount of wealth or a better access to necessary materials for technology.
Most people in the world have access to cheap energy items that can be bought from a store in town. These items are typically made from common metals and powered naturally found energy crystals or, more likely, a powdered form of those natural crystals. Guns still use ballistic ammunition, though the power source has advanced considerably from gunpowder.
More advanced and rare energy items exists, with weapons being made of special materials (such as godrium and fire rubies) that have a much higher concentration of energy, making them much more powerful than their simple counterparts.