Mirror Dungeon
The Mirror Dungeon is a major aspect of Limbus Company gameplay, allowing the player to "grind" for materials without limit. They encourage players to build up E.G.O Gifts catered to their deployed Identities, forcing the choice between a variety of theme packs and encounters as they progress through floors featuring enemies from the main story and Refraction Railways.
Mirror Dungeons are updated once every Season, sometime after all new Canto story content has been released. Both an Easy and Hard mode are available, netting slightly different rewards.
Overview
The Mirror Dungeon is a secondary game mode in which the Manager traverses a randomly generated dungeon. A new Mirror Dungeon is released every Season, and each makes extensive changes to the gameplay of the previous Mirror Dungeon. All Mirror Dungeons have two Difficulty levels: Normal and Hard. Entry to Mirror Dungeons is free. However, redeeming their rewards requires spending Enkephalin Modules. The base version of a Mirror Dungeon requires 5 Enkephalin Modules to claim rewards, while the hard version requires 6 per weekly bonus used and 5 if none are used.
Sin Resources persist in the Dungeon between Encounters, allowing the player to save up resources that can then be spent on later battles.
Rewards
Every week, 3 weekly bonus charges are recharged. Managers who clear the dungeon will be able to claim Lunacy and Limbus Pass XP for the Battle Pass with a number of Enkephalin Modules. If the Dungeon is played in Hard Mode, multiple bonus charges can be used at the same time, decreasing the number of Dungeon runs needed to gain all rewards.
Leaving the dungeon early still allows you to claim rewards, but gives fewer resources for the same cost. Notably, all Lunacy can be obtained by clearing floor 4 and skipping floor 5.
Weekly Bonus Charges Used |
Rewards | Total | ||||
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3 (Hard Mode) |
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2+1 (Hard Mode) |
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1+2 (Hard Mode) |
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1+1+1 (Normal or Hard Mode) |
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0 (Normal or Hard Mode) |
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List of Mirror Dungeons
Every Season, the previous Mirror Dungeon is replaced with a new Mirror Dungeon based on the current Season and its respective Canto. All Mirror Dungeon Normal modes can be accessed upon the completion of Canto II: The Unloving, but completing more Cantos and Intervallos increases the diversity of enemies, as well as unlocking the Hard mode.
Mirror Dungeon | Description |
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![]() Mirror of the Dreaming November 28, 2024 - Present |
Mirror of the Dreaming Replaced Mirror of the Wuthering starting on the 28th November, 2024 update.
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![]() Mirror of the Wuthering May 2, 2024 - November 27, 2024 |
Mirror of the Wuthering Replaced Mirror of the Lake starting from the 2nd May 2024 update.
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![]() Mirror of the Lake December 14, 2023 - May 1, 2024 |
Mirror of the Lake Replaced Mirror of the Beginning and Mirror of Mirrors starting from the 14th December 2023 update.
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![]() Mirror of Mirrors June 29, 2023 - December 13, 2023 |
The Mirror of Mirrors was introduced in addition to the Mirror of the Beginning in the June 29, 2023 update.
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![]() Mirror of the Beginning Game Launch - December 13, 2023 |
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Mechanics
Encounters
Mirror Dungeon enemy encounters are randomly chosen based on the theme pack selected.
All combat encounters will have attack type or sin type weaknesses below them. For Abnormality Encounters/Focused Encounters, Sin type weakness will be next to it. If the Boss encounter is an Abnormality, both the attack type and sin type weakness will be displayed.
While an event is running, the theme pack drop rates will be altered, and an event-related Theme Pack will always be available on the final Floor.
As of April 25, 2024, the flavor text on all of the encounters no longer exists, replaced with a single giant text. With the release of the Mirror of the Wuthering, the name of all Battle encounters are replaced by the name of the Floor Theme Pack chosen for the current Floor.
Icon | Type | Identity Encounter |
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Normal Encounter | Chain battle encounter. |
Coin Icon | Risky Encounter | Chain battle of Humanoid/Monsters at a higher Level. |
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Focused Encounter | Focused encounter of Peccatula. |
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Abnormality Focused Encounter | Fought Abnormality corresponds to Abnormality Core displayed. Grants two E.G.O Gifts upon beating the Abnormality. The gifts are the same as those obtained through an abnormality event. |
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Boss Encounter | Focused Boss Encounter. Each Floor Theme Pack has its own pool of potential bosses. |
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Abnormality Event | Abnormality Event (See Below). Some Abnormalities can be fought. |
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Shop | Cost can be exchanged here for E.G.O Gifts, Healing, and other Functions. See Shop Functions. Shop Nodes will appear before the final Boss node of every Floor. |
Rest Bonus
Beginning from Mirror of the Dreaming, Rest Bonus charges are used to acquire Starter Buffs for Mirror Dungeon runs.
Each Identity will gain 1 Rest Bonus charge for each Mirror Dungeon completed without them being Deployed, up to a maximum of 5 Rest Bonus charges. At the start of a Mirror Dungeon, the Rest Bonus of the Deployed team is added to a preexisting bonus of 60 Rest Bonus charges, and Rest Bonus charges can be used to purchase any number of Starter Buffs. The remaining Rest Bonuses are converted to starting
Cost, at a ratio of 1 Rest Bonus = 5
Cost.
After the Mirror Dungeon's rewards are redeemed, the initially Deployed team will have all Identities' Rest Bonus charges reset to 0, and all remaining Identities with gain 1 Rest Bonus charge. Identities Deployed through Shops will neither gain nor lose Rest Bonus charges.
Cost
Each enemy Encounter the player successfully defeats allows the manager to earn some Cost. The amount of Cost gained from each Encounter varies according to the type of the Encounter, and the difficulty of the Mirror Dungeon Floor:
Encounter Type | [NORMAL] ![]() |
[HARD] ![]() |
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Normal Encounter | 50![]() |
60![]() |
Focused Encounter | 75![]() |
100![]() |
Risky Encounter | 100![]() |
120![]() |
Abnormality Focused Encounter | 100![]() |
150![]() |
Floor Boss Encounter (Increases throughout the dungeon) | 120+![]() |
200+![]() |
Certain E.G.O Gifts also increases the Cost gained from Combat Encounters, with varying degrees of efficiency depending on the exact mechanism.
Cost is also gained upon initial entry of the Mirror Dungeon; the exact amount of starting Cost depends on the amount of leftover Rest Bonus charges the Manager had after selecting their Starter Buffs, with a ratio of 1 Rest Bonus = 5 Cost. This is then added to a base starting Cost of 200
Cost.
Certain Starter Buffs also increases the amount of starting Cost.
Cost can be spent at Shops for Sinner Skill replacement, healing, purchasing or boosting E.G.O Gifts, or Team adjustment.
Shop Functions
Name | Type | ![]() |
Additional Details |
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Heal Sinner | Heals either all Sinners or one Sinner | 100 | The manager can choose to heal one Sinner by 50% HP and 45 SP, to heal all Sinners by 15% HP and 15 SP, or to revive a dead Sinner. Can be purchased indefinitely. |
Team | Adds a new Identity/E.G.O to the team | 100 | Allows the manager to adjust the Identity and/or E.G.O of up to three Sinners. 100 Cost will be spent regardless of the number and nature of replacements. |
Skill Replacement | Replaces the selected Sinner Identity's Skill (picked at random). | 45 (replace Skill 1 with Skill 2) 75 (Replace Skill 2 with Skill 3) 120 (Replace Skill 1 with Skill 3) |
An attack Skill will be replaced once purchased, altering the skill distribution of the selected Identity. |
E.G.O Gifts | Adds an E.G.O Gift to the arsenal | Dependent (140 - 600) | Does not show already obtained or stage-exclusive E.G.O Gift inside. Displays 4 Gifts per Dispense visit. Certain ![]() |
Refresh | Refresh the pool of E.G.O Gifts being sold, and the Sinner available for Skill Replacement. | 15 Cost; +15 for each refresh | Certain E.G.O Gifts reduce the Cost of Refreshing, or gives a chance for a Cost refund after a Refresh. Certain ![]() |
Keyword Refresh | Identical to Refresh, except that the player may choose a Keyword that the Refresh will more likely produce. | 90 Cost; +15 for each refresh (linked with normal Refresh) | Certain ![]() |
Sell E.G.O Gifts | Sell unwanted E.G.O Gifts for Cost | Varies (+50 - 300) | E.G.O Gift sale price is 50% that of its purchase price. |
Enhance Gifts | Enhances effects of certain E.G.O Gifts. | Depends upon Gift Tier and Enhance Tier (50 - 200) | Not all E.G.O Gifts can be enhanced. For a list of enhanceable E.G.O Gifts and their effects, see List of E.G.O Gifts/Enhance. For exact Cost of enhancing, see table below. |
Fuse Gifts | Fusing multiple E.G.O Gifts to produce a new E.G.O Gift. | Free | Fusing multiple E.G.O Gifts of a low tier may produce a Gift of a higher tier. |
Super Shops
Super Shops only appear on Floors cleared on Hard Mode, replacing Regular Shops with a chance tied to the amount of Cost spent at previous Shops: the chance has a baseline of 3%, increasing by 1% per 20
Cost spent. It is inherited between Shop visits, only resetting when a Super Shop generates.
Compared to Regular Shops, Super Shops have the following modifications:
- +3 to the number of E.G.O Gifts displayed, bringing the baseline to 7 E.G.O Gifts per visit.
- 2 Sinner's Skills can be replaced, displaying as the Skill Replacement shop item being still available after the first Replacement is purchased.
- E.G.O Gift Fusion in Super Shops support up to 5 E.G.O Gifts being Fused.
Gift Enhance Costs
Tier | Cost (Upgrade Level 1) | Cost (Upgrade Level 2) |
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I | 50 | 100 |
II | 60 | 120 |
III | 75 | 150 |
IV | 100 | 200 |
Gift Fusion Details
The player first chooses a Keyword Category they would like to obtain from the Fusion. There are two kinds of fusions.
Recipe Fusions
Certain combinations (Recipes) of Gifts yield specific Gifts. These Gifts cannot be obtained from Shops, random Encounter rewards, or Fusion not conforming to the Recipe. For a list of Fusion Recipes, see E.G.O Gift Fusion Recipes.
Random Fusions
Any other fusion yields a random non-Recipe Gift. In addition to standard Gifts, random fusions can yield non-Recipe Gifts that are exclusive to the current floor theme.
Fusing more Gifts increases the chance of obtaining Gifts of the desired Keyword: 2-Gift Fusions have a 60% chance, 3-Gift Fusions have a 90% chance, and Fusions of 4+ Gifts have a 99% chance.
The Tier of result of the Fusion depends on the combined Tiers of the Gifts fused, utilizing a points system:
Gift Tier | Fusion Points |
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I | 3 |
II | 6 |
III | 10 |
IV | 15 |
V | 30 |
The Fusion Points from the Fused Gifts are added up, and the following is used to determine the Tier of the resultant Gift. | |
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Point Range | Resultant Gift Tier |
≤ 10 Points | I |
11~16 Points | II |
17~24 Points | III |
≥ 25 Points | IV |
Rule of Thumb: Fusion Gift Tier = (sum of Fused E.G.O Gifts' Tiers / 2) (rounded down) |
Fusion in Super Shops have slightly different Point Ranges: | |
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≤ 9 Points | I |
10~14 Points | II |
15~21 Points | III |
≥ 22 Points | IV |
E.G.O. Gifts
There are a total of 317 E.G.O. Gifts that you may encounter during a Mirror of the Dreaming run. In all difficulties, you will choose 1 Tier 2 E.G.O Gift from one of 10 Categories (1 for each Sin Affinity and Damage Type) (certain Starter Buffs increase the number of Starting E.G.O Gift Choices). The E.G.O Gifts offered in these categories are fixed (see #Starting E.G.O Gift Choice).
Battle Encounters has a certain chance of letting you pick another upon beating them: 5% for Normal Encounters, 70% for Abnormality/Focused Encounters, 35% for Risky Encounters, and guaranteed for Boss Encounters. Boss Encounters offers you to pick 1 Gift out of 3 (on [NORMAL]) or 2 Gifts out of 4 (on [HARD]) while the rest only offers 1 choice of Gift. You can reject any E.G.O Gifts offered if they do not suit your current run.
Abnormality Encounters may also give you their relevant E.G.O Gift depending on the chosen decision. Gifts earned in this manner cannot be rejected.
A list of all E.G.O Gifts acquirable in the Mirror Dungeons can be found on this page.
Starting E.G.O Gift Choice
Starting E.G.O Gifts | |||||||||
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Keyword | Gifts | ||||||||
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Hellterfly's Dream |
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Fiery Down |
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Pain of Stifled Rage | ||||||
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Wound Clerid |
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Little and To-be-Naughty Plushie |
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Awe | ||||||
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Oscillating Bracelet |
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Reverberation |
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Sour Liquor Aroma | ||||||
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Barbed Lasso |
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Fluorescent Lamp |
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Smoking Gunpowder | ||||||
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Red Order |
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Melted Spring |
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Grandeur | ||||||
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Cigarette Holder |
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Stone Tomb |
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Old Wooden Doll | ||||||
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Employee Card |
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Portable Battery Socket |
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Patrolling Flashlight | ||||||
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Dreaming Electric Sheep |
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Short Cane Sword |
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Resolution | ||||||
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Gathering Skulls |
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Plume of Proof |
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Torn Bandolier | ||||||
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Today’s Expression |
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Pocket Flashcards |
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Temporal Bridle |
Abnormality Encounters
In Abnormality Encounters, a random Abnormality will appear, and the Manager will be prompted to make a choice between multiple actions. Abnormalities that appear in previous dungeons may appear in newer dungeons. Some choices can lead to a Focused Encounter. In addition to the rewards shown before the fight, you will also gain 75 (100 in Hard Mode) Cost like a normal Focused Encounter (Cost increasing E.G.O Gift and Starter Buff are also applied).
For an idea on what choices leads to what results, check their respective information page.
Mirror of the Dreaming | |||||||||
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![]() Doomsday Calendar |
![]() Alleyway Watchdog |
![]() Have You Become Strong |
![]() Basilisoup |
![]() Headless Ichthys |