Hello, the main idea behind Nether Plus is to encourage players to visit the nether more frequently. Nether Plus accomplishes this by adding more features to the nether in Minecraft beta 1.7.3. Some of these features include overworld ores (coal, iron, diamonds, ect.), dungeons, and replicated biomes found in newer updates. The video shows a preview of the mod in its current state and is simply a concept. More features will be added in later updates. This mod uses modloader and will soon use audiomod for custom sound effects.