Online:Infinite Archive

Realm: Infinite Archive (view on map) (lore page)
Arena
Discoverable	Yes
Quest Chain
Endless Library, Apocrypha
Location
North of Runemaster's Acropolis
Instanced Dungeon
Group Size	2
Veteran Speed Run Target
Loading Screen
"What is life but a constant fight against unending enemies and unseen puppet masters across an ever-changing landscape? The Infinite Archive is not the exception to the struggles of existence, it is the quintessence of it."—Master Malkhest

The Infinite Archive - Entrance

The Infinite Archive (previously called the Endless Archive) is a two-person arena located in a demiplane linked to Apocrypha.

A portal to the Infinite Archive can be found north of Runemaster's Acropolis, inside a cavern that can be accessed on the shoreline. Alternatively, it can be accessed by clicking on the icon on the Apocrypha map and teleporting directly to the Archive. It is an endless library which has become infected by Tho'at Replicanum, a Daedric being of living ink.

The Infinite Archive is part of the base game and is accessible for all players, regardless of ESO Plus subscription or ownership of the Necrom Chapter.

Related Quests

• Infinite Archive Objective: Survive as long as possible and explore the infinite halls. / You braved the chaotic halls and defeated Tho'at Replicanum.
  • The Margins of Ire: Enter the Infinite Archive and hunt down Tho'at Replicanum.
•  Replication Elimination: Enter the Infinite Archive and defeat the Tho'at Replicanum.
• A Bookbinder's Bind: Retrieve missing book pages from the Infinite Archive.
• Restoring the Resurrected: Retrieve missing bookbinding supplies from the Infinite Archive.
•  Restorer of Theories: Help Destozuno with finding pages of the "Theories on Apocrypha".
• Aiding the Infinite Archive: A watchling requires assistance in the Infinite Archive.

People

Endless Archive Index Master Malkhest Filer Eru Filer Kyf Filer Jun Filer Myx Filer Ool Filer Tezurs Filer Xess

Infinite Archive Aramril Baturbak Beenumpa Destozuno Filer Kor Nidara Andalas Vaarille

†Will provide Merchant services or accompany you randomly during stages in the Infinite Archive.

±Filer Tezurs offers a variety of items and is always available in the Archive Index Hall.

°Filer Ool is only available to purchase from after having completed some amount of the Infinite Archive. Filer Ool's wares rotate every week.

Functionality

The Infinite Archive is an "unending" dungeon/duo-arena added in Update 40. The Infinite Archive does not have a normal or veteran mode; it gets progressively more difficult with each 'round' one completes. Players may enter solo, with an NPC Companion or with one friend (in a duo). There is a separate Leaderboard for solo and duo completions of the archive.

What makes The Infinite Archive different from other PvE content in ESO is that the majority of its encounters are randomly generated. Each 'round' consists of randomly selected trash packs, which can conjure up unusual combinations of various mobs from throughout the game, such as bone colossi fighting alongside dwarven automata. At the start of a round, a blob of roiling ink will spawn, and walking under it will trigger the enemies to appear. There are two such waves prior to the third and final segment of each round.

A round's final encounter spawns a Boss, again, randomly selected from dungeon, world, and trial content throughout ESO, including Expansions. The bosses’ HP and damage are reduced, making them more suitable for a 1 or 2 player battle. However, they do retain most of their original mechanics, so knowledge and experience of a wide range of bosses in ESO is advantageous to have.

Solo, Duo, Companions

While the Infinite Archive is neither normal nor veteran, the ramping difficulty is static regardless of whether you play solo or as a duo. A player may certainly last longer and complete more rounds playing with another player. Companions are available to select within the Archive, however, they are unable to make choices based on content and therefore are not the best at staying alive as difficulty increases.

• Best method: Duo with a friend.
• Nominal: With a Companion (and a quick rez).
• Challenging: Solo. One must have a solid 'solo build' as well as in-depth knowledge of game mechanics.

Progression

The Infinite Archive is broken down into smaller portions to make it more structured and manageable:

• Stages – Each time you go through a Portal in the Infinite Archive, you are taken to a new Stage. You usually have two stages of trash mobs, each one containing three packs of randomly generated mobs. The third stage will contain a boss, randomly selected from a very long list of potential bosses found throughout ESO.
• Cycles – After beating the boss at the end of the final stage, you will begin a new Cycle. Each cycle has the same structure as that described above, two stages and a boss fight on the final one.
• Arc – After completing four Cycles, you will have to fight another boss, which is the final boss of the Arc. This one is tough and can easily end your run. After completing the boss, you will move onto another Arc, beginning the process anew (Arc 2, Cycle 1, Stage 1). Each Arc is more difficult than the last – mobs and bosses will hit harder and you may occasionally find surprise bosses (Marauders) mixed in with the trash pulls.

1 Arc consists of the following:

Cycle 1	Cycle 2	Cycle 3	Cycle 4	Cycle 5
Trash	Trash	Trash	Trash	Trash
Trash	Trash	Trash	Trash	Trash
Boss	Boss	Boss	Boss	Big Boss

† This may have been reduced now to 3 Cycles only.

Visions and Verses

Verses are temporary buffs that last until the end of the next stage.
Visions are permanent buffs that will be on your character until you finish the Infinite Archive.

• Verses
  • Offensive Verses
  • Defensive Verses
  • Utility Verses
• Visions
  • Offensive Visions
  • Defensive Visions
  • Utility Visions

Rewards

After completing a Cycle, Arc or side puzzle, a Muniment Chest will be awarded, containing a variety of rewards including gold, equipment, soul gems and a special new currency called Archival Fortunes.

Archival Fortunes can be spent at the merchants in the entrance area of the Infinite Archive in return for special rewards, such as Monster Mask style motifs, Legendary quality treasure maps, non combat pets, Companion gear and more.

The Infinite Archive item sets are Class-specific. A player will typically only find pieces of the set for the class currently being played. As with all curated Sets, once the 'Stickerbook' is completed, other set pieces for other classes will begin to drop.

Class Sets

The item sets available from the Infinite Archive are:

Set Name	Bonuses	Armor Weight
Basalt-Blooded Warrior	2 items: Adds 3-129 Magicka Recovery 3 items: Adds 28-1206 Maximum Health 4 items: Adds 3-129 Weapon and Spell Damage 5 items: Casting an Earthen Heart ability grants you a Rock Stance for 10 seconds. While on your Primary Weapon you gain Molten Stance, granting you Major Heroism, generating 3 Ultimate every 1.5 seconds. While you are on your Secondary Weapon you gain Obsidian Stance, increasing your Healing Done and damage shields by 14%. Bar Swapping will swap your Stance automatically.	All Weights
Wrathsun	2 items: Adds 3-129 Weapon and Spell Damage 3 items: Adds 15-657 Critical Chance 4 items: Adds 3-129 Weapon and Spell Damage 5 items: When you deal damage with a Dawn's Wrath ability, you gain a stack of Sunlight for 10 seconds, once per attack. You can have 40 stacks max and gain 12 Magicka Recovery per stack. When at max stacks, your Dawn's Wrath abilities deal 25% bonus damage and a Wrathful Nova is cast on the enemy, but you cannot refresh Sunlight. When Sunlight expires at max stacks, you lose 50% of your current Magicka.	All Weights
Monolith of Storms	2 items: Adds 15-657 Critical Chance 3 items: Adds 3-129 Weapon and Spell Damage 4 items: Adds 3-129 Weapon and Spell Damage 5 items: Dealing damage with a Storm Calling ability's initial hit or every 5th tick creates a Monolith near the enemy for 10 seconds, up to one every 1 second. You may have up to 3 Monoliths at a time. Monoliths link to your other Monoliths within 28 meters of each other, each link dealing 680 Shock damage, scaling off of the higher of your Weapon and Spell Damage, every 2 seconds to enemies between and near them. An enemy can only take damage from this set once every 2 seconds.	All Weights
Soulcleaver	2 items: Adds 3-129 Weapon and Spell Damage 3 items: Adds 25-1096 Maximum Magicka 4 items: Adds 3-129 Weapon and Spell Damage 5 items: While in combat, strengthens your Siphoning abilities at the cost of Ultimate: Increases the damage and healing of Siphoning abilities by 18%. Reduces the cost of Siphoning abilities by 18%. Casting Siphoning abilities drains you of 1 Ultimate.	All Weights
Gardener of Seasons	2 items: Adds 4% Healing Done 3 items: Adds 3-129 Magicka Recovery 4 items: Adds 3-129 Weapon and Spell Damage 5 items: Gain Herald of Spring, causing your Green Balance overheals to apply Minor Heroism for 3 seconds. Casting a Heal ability while Bracing consumes Herald of Spring and gives you Harbinger of Fall for 6 seconds, causing your Green Balance overheals to create an 8 meter area for 5 seconds, applying Major Cowardice to enemies and Minor Vitality to allies. You can create an area once every 5 seconds. When Harbinger of Fall ends, regain Herald of Spring.	All Weights
Nobility in Decay	2 items: Adds 28-1206 Maximum Health 3 items: Adds 4% Healing Taken 4 items: Adds 28-1206 Maximum Health 5 items: Casting a Bone Tyrant ability while in combat grants you Beautiful Corpse and Death's Favor for 16 seconds. Death's Favor increases your healing received and reduces Damage Taken by up to 12% based on your missing Health. This can occur once every 20 seconds, and is reduced by 2 seconds for each slotted Bone Tyrant ability. Casting a corpse consumer ability consumes Beautiful Corpse, treating you as a corpse.	All Weights
Reawakened Hierophant	2 items: Adds 17-731 Maximum Magicka 2 items: Adds 17-731 Maximum Stamina 3 items: Adds 17-731 Maximum Magicka 3 items: Adds 17-731 Maximum Stamina 4 items: Adds 17-731 Maximum Magicka 4 items: Adds 17-731 Maximum Stamina 5 items: Casting a non-Ultimate Curative Runeform ability grants an effect for 6 seconds to your affected allies based on how many Crux you had. At 1 Crux, allies gain a damage shield that absorbs 3618 damage. At 2 Crux, allies gain Minor Heroism, granting 1 Ultimate every 1.5 seconds. At 3 Crux, allies gain Major Protection, reducing damage taken by 10%.	All Weights

Enemies

Normal & Elite

The enemies that spawn while with the Infinite Archive are randomised with each stage. However, a selection from 1-2 "Factions" will be spawned by the maligraphies for each non-boss stage. Some of the creatures that spawn are independent of any factions, such as the Dremora and Fabled enemies. The latter appear more frequently in later arcs and are more powerful than most.

Please note, most of these listed factions correspond to the categories mentioned for the Archive's Most Adored achievement.

Ascendant Ascendant Archer Ascendant Bulwark Ascendant Cryomancer Ascendant Pursuer Ascendant Vanguard Dreadhorn Dreadhorn Blade-Bearer Dreadhorn Briarcaller Dreadhorn Earthgorer Dreadhorn Firehide Dreadhorn Flamechanter Dreadhorn Scrapper Dro-m'Athra Dro-m'Athra Conduit Dro-m'Athra Blademaster Dro-m'Athra Runecaster Dro-m'Athra Sentinel Firesong Firesong Druid Firesong Rockseer Firesong Vinecaller Firesong Wildling

Goblins Goblin Archer Goblin Berserker Goblin Firemage Goblin Warbruiser Grovebound Grovebound Blightbow Grovebound Bruiser Grovebound Dreadmage Grovebound Mauler Silver Rose Silver Rose Archer Silver Rose Knight Silver Rose Pyromancer Silver Rose Realmshaper Silver Rose Stormcaster Daedric Minions Daedroth Ogrim Spider Daedra

Dwarven Constructs Dwarven Arquebus Dwarven Centurion Dwarven Sphere Dwarven Spider Forest Hunters Bear Bristleback Dire Wolf Giant Bat Living Roots Lurcher Wild Spriggan Wild Guar Magma Iron Atronach Magma Scamp Magma Shalk Stormy Seas Sea Adder Storm Imp Storm Atronach

Fabled Fabled Fateweaver Fabled Flameshaper Fabled Infuser Fabled Mystic Fabled Spellthief Fabled Sun-Eater Fabled Totem Master Unique Aramril Butcher Haefal Butcher Sja Gw the Pilferer Unsorted Body Snatcher Wasp Bone Colossus Bone Flayer Cliff Strider Durzog Dremora Battlemage Dremora Bulwark Dremora Conduit Dremora Conjurer Dremora Ironclad Dremora Ravager Dremora Spellsword Dremora Tormentor Dremora Vigilant Relic Fiend Salamander

†Elite Enemy

±Start appearing after Arc 1, Cycle 4, count towards Fabled Foil achievement

Bosses

There are many different bosses one can potentially find in the The Infinite Archive. These bosses are reflections of dungeon, world and trial bosses throughout ESO, and typically retain most of their mechanics and attacks, however their health and damage is scaled down to make them more balanced for 1 or 2 players.

As one progresses through the Infinite Archive, bosses will get tougher, with more hitpoints and damage. You can optimize a build for the Infinite Archive with the Penetration table below.

The armor of bosses in Infinite Archive is as follows:

Boss	Pen Req'd
First Boss:	9100
Second Boss:	9100
Third Boss:	9100
Fourth Boss:	9100
Arc Final Boss:	18200

This pattern will repeat in subsequent Arcs after the first one.

Boss List

There are many bosses that can appear, from story quests bosses, dungeon bosses, trial bosses, and world bosses. You do not have to have previously encountered a boss in other areas of the game for it to appear in the Infinite Archive.

The Marauders do not appear in the boss stage, but can appear randomly in any other stage after Arc 1.

Dungeon Boss Allene Pellingare Ash Titan Baron Zaudrus Caluurion Canonreeve Oraneth Captain Blackheart Death's Leviathan Doylemish Ironheart Exarch Kraglen Garron the Returned Grothdarr High Kinlord Rilis Iceheart Kjarg the Tuskscraper Kra'gh the Dreugh King Lady Thorn Lord Warden Dusk Molag Kena Murklight Nazaray Nerien'eth Prior Thierric Sarazen Razor Master Erthas Selene Sentinel Aksalaz Shadowrend Sonolia the Matriarch Symphony of Blades The Lava Queen The Weeping Woman The Whisperer Tremorscale Vila Theran Vorenor Winterbourne War Chief Ozozai Z'Baza

Story Quest Boss Barbas Councilor Vandacia Laatvulon Lady Belain Mulaamnir Ra'khajin Rada al-Saran The Ascendant Lord Valkynaz Nokvroz Trial Boss Rakkhat The Mage The Serpent The Warrior Yolnahkriin Zhaj'hassa the Forgotten

World Boss Bittergreen the Wild Cynhamoth Ghemvas the Harbinger Glemyos Wildhorn Limenauruus Old Snagara Queen of the Reef Ri'Atahrashi Taupezu Azzida The Endling The Imperfect The Sable Knight Voidmother Elgroalif Xeemhok the Trophy-Taker Ysmgar Marauders Marauder Gothmau Marauder Hilkarax Marauder Ulmor Final Boss Tho'at Replicanum

Books

The following books can be found within the Infinite Archive:

• Archmagister Mavon's Ascension by Nardhil Arethan — A cautionary tale on names
• Captain Burwarah's Records by Captain Burwarah — A captain's log of an unfortunate voyage
• The Felling of Windweaper's Grove‎‎ — A knightly edict calls for the death of any creature that threatens the construction of a temple of Arkay
• Fynboar the Resurrected — A Reachfolk tale of a deal with Mora and the consequences
• Izzmothar's Power — A fire scamp's attempt at writing
• The Last Addition of Bikkus-Muz by Bikkus-Muz — An account of the Maligraphies appearing in the Infinite Archive
• Malkhest's Journal by Malkhest — Malkhest's description of the Infinite Archive
• Materials for Novice Necromancers by Girara the Undying — A basic guide on all things undead
• Notes on Tho'at Replicanum by Master Malkhest — Malkhest's documentation of the Tho'at Replicanum
• Obscure Killers of the North by Florenot Epinard — An excerpt on the Butcher of Morthal
• On the Discovery of Relic Fiends by Weylin — A warning on dealing with Oblivion
• The Silver Rose Blooms over Borderwatch
• Snushularg's Promise by Cipher Snushalarg — A warning from a disgruntled Cipher

Achievements

Achievement		Points	Description
	Infinite Archive Challenger	50	Complete various meta achievements inside Infinite Archive
	Infinitely Versed	50	Complete all of the unique Verses achievements.
	Attentive Eye	50	Complete all of the unique Vision achievements.
	Leading the Charge	50	Complete all of the Defeat Cycle Boss achievements in the Infinite Archive.
	No Book Left Unread	50	Complete all Infinite Archive Optional Achievements.
	Going Solo	5	Complete 3 Stages without the aid of a companion or other player in the Infinite Archive.
	Who Needs Friends?	10	Complete 15 Stages without the aid of a companion or other player in the Infinite Archive.
	Me, Myself, and I	15	Complete 60 stages without the aid of a companion or other player.
	A Little Help Never Hurt	5	Complete 3 Stages with a companion in the Infinite Archive.
	Companionable Combatant	10	Complete 15 Stages with a companion in the Infinite Archive.
	Companion Champion	15	Complete 60 stages with a companion.
	A Stage for Two	5	Complete 3 Stages with another player in the Infinite Archive.
	Infinite Camaraderie	10	Complete 15 Stages with another player in the Infinite Archive.
	Friends for Life	15	Complete 60 stages with another player.
	Once More, Please	10	Complete the Replication Elimination daily quest 10 times.
	First Splurge!	10	Spend 1,000 Archival Fortunes.
	It's an Investment	15	Spend 10,000 Archival Fortunes.
	Fortune's Flush	50	Spend 100,000 Archival Fortunes.
	Favorite Customer	50	Purchase all collectibles from the Infinite Archive Merchants.
	Ichor Most Malevolent	50	Acquire and use 50 Maligraphic Ichors.
	Scheming Skeevers	15	Acquire and use 25 Disgusting Spoils.
	Peer Into the Mirror Maze	15	Acquire and use 20 Unreliable Archive Maps.
	Walk Through the Mirror Maze	15	Acquire and use 20 Erroneous Archive Maps
	Infinite Archive Conqueror	50	Defeat the final evolution of Tho'at Replicanum
	Knock 'em Down a Peg	10	Defeat one of the Marauders in the Infinite Archive.
	Marauder Slaughter	15	Encounter and defeat all the Marauders in the Infinite Archive.
	I Crave Violence	10	Acquire 16 specific and unique Offensive Verses in the Infinite Archive.
	You Can't Touch Me	10	Acquire 16 specific and unique Defensive Verses in the Infinite Archive.
	Viable and Versatile	10	Acquire 11 specific and unique Utility Verses in the Infinite Archive.
	Visions of Violence	10	Acquire 16 specific and unique Offensive Visions.
	Infinite Defender	10	Acquire 16 specific and unique Defensive Visions.
	Seeing the Big Picture	10	Acquire 15 specific and unique Utility Visions.
	Keeping It Cool	15	Acquire all Ice Avatar Visions and then acquire the Ice Avatar Verse.
	Howling with Rage	15	Acquire all Werewolf Behemoth Visions and then acquire the Werewolf Behemoth Verse.
	Molten Measures	15	Acquire all Iron Atronach Visions and then acquire the Iron Atronach Verse.
	Battle Ready	5	Acquire 5 Offensive Verses or Visions.
	Armed Onslaught	10	Acquire 25 Offensive Verses or Visions.
	Mora's Onslaught	15	Acquire 75 Offensive Verses or Visions.
	A Sturdy Shield	5	Acquire 5 Defensive Verses or Visions.
	Forceful Fortifications	10	Acquire 25 Defensive Verses or Visions.
	Under Mora's Protection	15	Acquire 75 Defensive Verses or Visions.
	Studying Up	5	Acquire 5 Utility Verses or Visions.
	Unorthodox Approach	10	Acquire 25 Utility Verses or Visions.
	Power Practicum	15	Acquire 75 Utility Verses or Visions.
	Archive's Most Adored	10	Encounter the following factions within the Infinite Archive.
	Heavy Hitter	10	Defeat 1,000 Maligraphies within the Infinite Archive Stages.
	Monster Mercenary	15	Defeat 2,000 Maligraphies within the Infinite Archive Stages.
	Fortune's Soldier	50	Defeat 5,000 Maligraphies within the Infinite Archive Stages.
	Fabled Foil	50	Defeat 500 Fabled in the Infinite Archive.
	Proof of Ability	5	Defeat 1 Boss in the Infinite Archive during the first Arc.
	Infinite Endurance	10	Defeat 50 Bosses in the Infinite Archive within the first Arc.
	Running the Gauntlet	15	Defeat 100 Bosses in the Infinite Archive within the first Arc.
	Back for Seconds	5	Defeat 1 Boss or Marauder in the Infinite Archive within the second Arc.
	Boss Basher	10	Defeat 30 Bosses and Marauders in the Infinite Archive within the second Arc.
	Watch Them Fall	15	Defeat 50 Bosses and Marauders in the Infinite Archive within the second Arc.
	Still Standing	10	Defeat 1 Boss or Marauder in the Infinite Archive within the third Arc.
	Decisive Dispatch	15	Defeat 15 Bosses and Marauders in the Infinite Archive within the third Arc.
	Outstanding Onslaught	50	Defeat 30 Bosses and Marauders in the Infinite Archive within the third Arc.
	Furious Fighter	10	Defeat 1 Boss or Marauder in the Infinite Archive within the fourth Arc.
	Slaying the Hordes	15	Defeat 10 Bosses and Marauders in the Infinite Archive within the fourth Arc.
	Infinite Arc's End	50	Defeat 20 Bosses and Marauders in the Infinite Archive within the fourth Arc.
	Infinite Archive Vanquisher	10	Defeat Tho'at once.
	You Again	15	Defeat Tho'at 10 times.
	Replicable Results	50	Defeat Tho'at 50 times.
	Destined Dungeoneer	15	Complete 150 Stages at or above Arc 2.
	Arcing Onward	50	Reach Arc 4.
	Word Waltzer	15	Complete all quests related to the Destozuno's Library optional content.
	Hidden Prowess	15	Complete all difficulties related to the Theater of War's optional content.
	Ghostlight Gatherer	15	Complete all difficulties of the Echoing Den optional content.
	Kidding Around	15	Complete all difficulties related to the Haefal's Butchery optional content.
	Mind over Magick	15	Completed all difficulties related to the Treacherous Crossing optional content.
	Eye See You!	15	Complete all difficulties related to the Filer's Wing optional content.
	Pilfered Pilfer	15	Kill Gw the Pilferer 5 times.

Leaderboard

The Infinite Archive has several leaderboards where players can compete against each other. These scores are NOT time dependent, as each player or team will work through the dungeon arcs at different paces. Score is improved by completing more stages, cycles and arcs. Solo and Duo Leaderboards are separate. Having a Companion active upon entering the Archive will place the player in the Duo Leaderboard if they score well.

Leaderboards in Infinite Archive:

Gallery

• 

  Infinite Archive Promo Image

• 

  Infinite Archive Promo Image

• 

  Infinite Archive Rewards

• 

  Infinite Archive Class Sets

• 

  Treacherous Crossing

• 

  Destozuno's Library

• 
• 
• 
• 
• 
• 

Maps

• 

  Location in Apocrypha

• 

  Infinite Archive Index Chamber

• 

  Infinite Archive Map 01 (Cipher's Midden looking one)

• 

  Infinite Archive Map 02

• 

  Infinite Archive Map 02 (Upper Level)

• 

  Infinite Archive Map 03

• 

  Infinite Archive Map 04

• 

  Infinite Archive Map 05

• 

  Infinite Archive Map 06

• 

  Boss Stage

• 

  Treacherous Crossing

• 

  Haefal's Butchery

• 

  Filer's Wing

• 

  Destozuno's Library

• 

  Theatre of War

• 

  Echoing Den

• 

  Tho'at Replicanum Boss Stage

Notes

• ^	This location was originally called the Endless Archive before being renamed to the Infinite Archive with the release of Patch 9.2.8 on December 18, 2023.