Tier 17 map

"Tier 17 map" redirects here. For "Valdo Maps", another Tier 17 equivalent of map that award a specific unique on completion, see Valdo's Puzzle Box.

A Tier 17 Map, also known as T17 or uber map, is a special type of map found in the endgame system related to the Atlas of Worlds. Tier 17 maps act as bridge between regular Atlas/endgame boss content and uber pinnacle boss content. Completing a Tier 17 map for the first time unlocks the fifth map device slot.

Mechanics

Tier 17 maps have a base area level of 84, making it easier to obtain item level 85-86 item bases required for certain powerful modifiers on items.

Tier 17 maps differ from regular maps in the following ways:

• Instead of a white, yellow, or red engraving icon to indicate the map's tier, the icon itself is purple.
• Tier 17 maps have their own pool of modifiers consisting of Red Tier (tier 11-16) modifiers and exclusive Tier 17 modifiers.
• Tier 17 maps will always have six affixes, including a Tier 17 exclusive prefix and suffix.
• Tier 17 maps always drop with 20% quality. They cannot drop corrupted nor can they become corrupted.
• Tier 17 maps cannot be modified with any currency items except Chaos OrbsChaos OrbStack Size: 20Reforges a rare item with new random modifiersRight click this item then left click a rare item to apply it.. However, they can be enhanced with map fragments or map crafting options when opened.
• Unlike Valdo's Maps, tier 17 maps are affected by the Atlas Passive Tree.
• Tier 17 maps have specific types of monster packs based on previous Path of Exile league mechanics like Heist or Expedition. They retain some of their specific mechanics, such as Expedition rare monsters having Ward.
• Tier 17 map bosses are also enhanced ("uber") versions of bosses from these mechanics, such as The Unbreakable (Heist), Uhtred (Expedition), and Catarina (Betrayal). These bosses can each drop an exclusive unique item, as well as map fragments required to open an uber pinnacle boss encounter.

Acquisition

Voidstones, when socketed into the Atlas of Worlds, have a chance to convert Tier 16 maps into a random Tier 17 map. The initial conversion chance can be calculated with the following formula: $\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}n\%$ = $\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}0.4v^{2}$, where $\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}v$ is the number of socketed Voidstones.

Voidstones	Initial conversion chance
1	0.4%
2	1.6%
3	3.6%
4	6.4%

With average map investment, a player can expect to see a Tier 17 map drop roughly once every 5 maps. To prevent a massive disparity of Tier 17 maps drops with certain "juicing" strategies, Tier 17 map drops are subject to "diminishing returns" within a map; this means that the first Tier 17 map dropped in a map will use the above conversion rate, then diminish to a unannounced point for subsequent drops in the same map.

The type of tier 17 map dropped depends on the map the player is currently in. Each map has a tag similar to map_drops_can_upgrade_to_X; for example, being in a Dunes MapDunes MapMap Level: 69
Map Tier: 2
Guild Character: AShifting, morphing, expanding. A reminder
of the virtues of an agile mind.Travel to this Map by using it in a personal Map Device. Maps can only be used once. will always convert dropped maps into Fortress MapFortress MapMap Level: 84
Map Tier: 17Modifiable only with Chaos OrbsVoices. Visions. Violence.
They will haunt these grounds for all of eternity.Travel to this Map by using it in a personal Map Device. Maps can only be used once.. This conversion ignores Singular Focus' restrictions. Maps dropped in Shaper Guardian maps and the Shaper's Realm can convert into any type of tier 17 map.

Tier 17 maps cannot drop inside a Tier 17 map.

List of tier 17 map drop locations

As described above, the following list displays the maps inside which tier 17 map can be obtained. The actual map dropped prior to conversion does not matter; only the map the player is currently in. Maps dropped in Shaper Guardian maps and the Shaper's Realm can convert into any type of tier 17 map.

Tier 17 Map	Abomination MapAbomination MapMap Level: 84 Map Tier: 17Modifiable only with Chaos OrbsVoices. Visions. Violence. They will haunt these grounds for all of eternity.Travel to this Map by using it in a personal Map Device. Maps can only be used once.	Citadel MapCitadel MapMap Level: 84 Map Tier: 17Modifiable only with Chaos OrbsVoices. Visions. Violence. They will haunt these grounds for all of eternity.Travel to this Map by using it in a personal Map Device. Maps can only be used once.	Fortress MapFortress MapMap Level: 84 Map Tier: 17Modifiable only with Chaos OrbsVoices. Visions. Violence. They will haunt these grounds for all of eternity.Travel to this Map by using it in a personal Map Device. Maps can only be used once.	Sanctuary MapSanctuary MapMap Level: 84 Map Tier: 17Modifiable only with Chaos OrbsVoices. Visions. Violence. They will haunt these grounds for all of eternity.Travel to this Map by using it in a personal Map Device. Maps can only be used once.	Ziggurat MapZiggurat MapMap Level: 84 Map Tier: 17Modifiable only with Chaos OrbsVoices. Visions. Violence. They will haunt these grounds for all of eternity.Travel to this Map by using it in a personal Map Device. Maps can only be used once.
Can drop from:	Acid Caverns Map Acton's Nightmare Arachnid Nest Map Arachnid Tomb Map Arid Lake Map Beach Map Bog Map Canyon Map Carcass Map Cells Map Core Map Dark Forest Map Desert Map Fields Map Forge of the Phoenix Map Fungal Hollow Map Infested Valley Map Jungle Valley Map Lair of the Hydra Map Malformation Map Mao Kun Marshes Map Maze of the Minotaur Map Mud Geyser Map Museum Map Overgrown Shrine Map Phantasmagoria Map Pit of the Chimera Map Primordial Pool Map Scriptorium Map Sepulchre Map Spider Forest Map Stagnation Map Sulphur Vents Map Sunken City Map The Putrid Cloister The Shaper's Realm Tower Map Tropical Island Map Waste Pool Map Wasteland Map	Ancient City Map Atoll Map Barrows Map Bazaar Map Belfry Map Caer Blaidd, Wolfpack's Den Cage Map Chateau Map Cold River Map Coral Ruins Map Courtyard Map Coves Map Dry Sea Map Dungeon Map Forbidden Woods Map Forge of the Phoenix Map Forking River Map Gardens Map Ghetto Map Glacier Map Iceberg Map Lair of the Hydra Map Maelström of Chaos Maze of the Minotaur Map Mineral Pools Map Orchard Map Overgrown Ruin Map Park Map Pen Map Pier Map Pit of the Chimera Map Plateau Map Precinct Map Ramparts Map Reef Map The Shaper's Realm The Vinktar Square Underground River Map	Academy Map Arcade Map Arena Map Armoury Map Arsenal Map Castle Ruins Map Channel Map Colonnade Map Colosseum Map Desert Spring Map Dunes Map Factory Map Forge of the Phoenix Map Foundry Map Hall of Grandmasters Laboratory Map Lair of the Hydra Map Lava Chamber Map Leyline Map Maze of the Minotaur Map Mesa Map Oba's Cursed Trove Peninsula Map Pillars of Arun Pit Map Pit of the Chimera Map Plaza Map Port Map Primordial Blocks Map Promenade Map Racecourse Map Shipyard Map Siege Map Silo Map Strand Map Synthesised Map The Shaper's Realm Waterways Map Whakawairua Tuahu Wharf Map	Alleyways Map Basilica Map Bone Crypt Map Burial Chambers Map Cemetery Map City Square Map Conservatory Map Courthouse Map Crimson Temple Map Crimson Township Map Defiled Cathedral Map Forge of the Phoenix Map Graveyard Map Hallowed Ground Haunted Mansion Map Ivory Temple Map Lair of the Hydra Map Lookout Map Mausoleum Map Maze of the Minotaur Map Moon Temple Map Olmec's Sanctum Palace Map Pit of the Chimera Map Poorjoy's Asylum Relic Chambers Map Residence Map Shrine Map Summit Map Temple Map Terrace Map The Shaper's Realm The Twilight Temple Vault Map Villa Map	Ashen Wood Map Bramble Valley Map Caldera Map Crater Map Crystal Ore Map Cursed Crypt Map Death and Taxes Dig Map Doryani's Machinarium Estuary Map Excavation Map Flooded Mine Map Forge of the Phoenix Map Frozen Cabins Map Geode Map Grave Trough Map Grotto Map Lair Map Lair of the Hydra Map Lava Lake Map Lighthouse Map Maze Map Maze of the Minotaur Map Necropolis Map Pit of the Chimera Map Shore Map Spider Lair Map The Beachhead (High Tier) The Coward's Trial The Shaper's Realm Thicket Map Toxic Sewer Map Underground Sea Map Vaal Pyramid Map Vaal Temple Map Vaults of Atziri Volcano Map

Version history

Version	Changes
3.24.1	Many modifiers that can roll on Tier 16 Maps can now also roll on Tier 17 Maps. Modifiers that can only roll on Tier 17 Maps are now rewarding in one of the 5 following ways: Enhanced Pack Size, Enhanced Item Rarity, More Currency Found, More Maps Found, or More Scarabs Found. Tier 17 Map Bosses now have a significantly higher chance to drop Elder Guardian, Shaper Guardian, Conqueror Maps and Synthesis Maps Tier 17 Maps will always roll with one Tier 17-exclusive prefix one Tier 17-exclusive suffix. The Tier 17 Map modifier that causes Rare and Unique Monsters to remove a percentage of Life, Mana and Energy Shield on hit now only removes from Players or their Minions. The "Rare and Unique Monsters spawn a Tormented Spirit on reaching Low Life" Map modifier can no longer roll on Tier 17 Maps. Existing Maps with this modifier now instead have "Unique Bosses are Possessed".
3.24.0b	Tier 17 Maps can now be modified by Chaos Orbs. Increased the Item Quantity and Item Rarity bonuses provided by Modifiers on Tier 17 Maps.
3.24.0	Introduced to the game. Monster Life increases in Tier 17 Maps no longer apply to the life of corpses in those Maps.