This mod is inspired by super-hostile maps and roguelike dungeon crawlers. With the added insanity of destructible/buildable terrain. Fundamentally the gameplay is vanilla, with the changes mainly being to the world generator.
Download here : Roguelike Dungeons Mod for Minecraft 1.6.4/1.5.2/1.4.7
Minecraft 1.6.4 Mods here: Minecraft 1.6.4 Mods
Minecraft Mods here: Minecraft Mods
Homepage: 5Minecraft | Minecraft download center