The gameplay is essentially based on a simple idea - you progress, you die, you start over. Unlike traditional RPG games, here death is part of the game. Roguelike games are generally accompanied by as many randomly generated elements as possible, which is nearly guaranteed to keep your interest though the many hours you might end up playing. Well, the twist with Pixel Dungeon goes beyond that - the item and weapons are randomly generated as well. Just because in your first play though a blue potion heals you, doesn't mean it won't set you on fire the next time you play through the game.