In a steampunk world, electrical technology and thermal weapon were restricted by the harsh environment. Gun: Guns worked restricted because they used stones, a relatively heavy bullet. Compared to guns in real life, guns in this world were more similar to slingshots, using stones as ammunition. The stones were very heavy, which meant hunters would only use them on certain occasions. What’s more, the limitation of elastic bands prevented the popularization of guns. electricity: Much of the technologies of a hundred years ago were lost in the disaster, so people had no way to make or use most electronic devices. People used diesel generators to generate electricity inefficiently, and could only use existing technology to produce inefficient computing devices such as single-chip computers. These devices were used to control steampunk technologies (e.g. monitor the temperature of blast furnance). Smart electronic devices such as mobile phones had never appeared in this world. What’s more, electricity was much stable than steam, that steam with high temperature could easily erode the equipments. Steam: Steam was much more stable than electricity since it was easy for people to acquire coal than diesel oil. However, burning coal to generate steam was relatively ineffective since much of the energy was release as heat. Therefore, the village needed a huge amount of coal to survive especially in cold weather.