# Atlas of Worlds The Atlas of Worlds is Path of Exile's end-game map system. The Atlas is a series of linked maps that players can progress through after completing a quest for Commander Kirac. It is explored and discovered by running maps within the Map Device at the Karui Shores, a player's hideout, or a guild hideout. The Atlas of Worlds is a visualisation of the dream worlds that are opened by activating maps, indicating how these worlds are linked. The Atlas is comprised of 115 different maps connected to each other by paths. ## Overview To "run" a map, the player must normally place a consumable map item in the Map Device. This creates a new instance of that map. The map will contain monsters and treasures and one or more unique bosses. To successfully complete the map, the character(s) must defeat all of the unique bosses on that map. Maps are divided into four tiers: * Maps with tiers 1 through 5, which are marked "White" * Maps with tiers 6 through 10, which are marked "Yellow" * Maps with tiers 11 through 16, which are marked "Red" * Maps with tier 17, a special map tier At first, your access to the maps of the Atlas is very limited. When map items begin dropping in Act 8, they will only be for the four starting maps at the very bottom of the Atlas, the "tier 1" maps. All the other maps on the Atlas with "tier 2" or higher start out locked. To unlock a map, the player must successfully complete that map at least once by beating the unique boss, either in a specific boss arena or roaming the map, depending on the map. Atlas progress is shared by all of a player's characters in a league. Once a map is unlocked, they can start dropping as loot. In addition, there is an Atlas passive skill tree with perks that affect drops and improve various League mechanics features, for example Master missions and other Extra Content such as Breach and Harbinger. Atlas passive skill points can be earned by completing a maps' bonus completion condition and Maven's invitations. The Atlas has many end-game bosses that players can fight, such as The Searing Exarch, The Eater of Worlds and The Maven which requires completion of the Maven's challenges in The Maven's Crucible. Other bosses like Uber Elder and Sirus, Awakener of Worlds can be fought repeatedly by using a special set of 4 map fragments in the Map Device. ## Atlas Completion Bonus You gain completion bonus for each map in the Atlas map completed for the first time under certain conditions: * For a white map (a map with tier 1 through 5), you must complete a map with magic rarity. * For a yellow map (a map with tier 6 through 10), you must complete a map with rare rarity. * For a red map (a map with tier 11 through 16), you must complete a map with rare rarity and have the corrupted modifier. Each bonus completions grants an Atlas passive skill point. ## Voidstones The Eater of Worlds, The Searing Exarch, The Maven, and Uber Elder each drop a Voidstone when first defeated. Each Voidstone slotted into the Atlas increases the map base's tier by 4, to a maximum of tier 16, grants a +15% chance for dropped maps to be one tier higher (up to tier 16), and 0.4% chance per slotted Voidstone to convert a tier 16 map drop into a tier 17 map.