This is some information about Advanced Survival Mod 1.6.4 that you need to know before installing

Advanced Survival Mod 1.6.4

This mod includes things like, Obsidian Ore, polished obsidian block, obsidian tools, redstone tools, a new food, and a couple new biomes! ...

View more and Download here : List of minecraft mods 1.7.2/1.6.4