Mirror Defense is a variant of Defense where the Tenno are tasked to protect two defense objectives connected through the Void, while collecting pickups to gain resources and activate defensive systems.
Access to the node on Tyana Pass, Mars requires completion of the Heart of Deimos quest and Mastery Rank 3, while Munio, Deimos requires completion of Whispers in the Walls quest.
Mechanics[]
Unlike traditional Defense where enemies are fought off in waves, Mirror Defense consists of a time limit of two and a half minutes for each objective, with a 30 second downtime in between to traverse the Void tunnel. A rotation is completed once both objectives have been defended, or every five and a half minutes. Rotation rewards follow an AABC drop table pattern.
Tyana Pass[]
Players must protect two crystals, Rania's Crystal from Grineer on Mars and then cross a Void tunnel to defend Belric's Crystal from Corpus on Venus. These crystals cannot be healed by Abilities or weapon passives unlike typical Defense Objects.[1]
Citrine's Remnants, appearing as crystallized teardrops, can be found scattered across the tilesets as enemies are slain and are most abundant during the Void tunnel transition. Remnants appear in groups of 3-8 and spawn in with an audible cue, and these pickups are shared squad-wide. Collecting 50 will heal the active crystal by 3,500 plus 15% of its max Health, grant it Overshields, and spawn a 
Prismatic Ward above the crystal to provide firing support. Remnants will despawn on the active tileset once the time limit ends. Remnants are not affected by 
Vacuum or Fetch, and are not able to be picked up with 
Mag's Pull ability or while within 
Limbo's Rift Plane or with 
Wukong's Cloud Walker.
Remnant audio cues:
- Spawn (download, history) (download, history) (download, history)
- Despawn (download, history)
- After collecting 50 Remnants (download, history)
Munio[]
Players must protect the Auricle and Vitreum of Albrecht's Laboratories. Likewise, when each round is done, players must cross the Void to get to the other side.
Vosphene Glyphs function as pickups for this variant of Mirror Defense, appearing as glowing Requiem icons. Collecting 50 will heal the Auricle or Vitreum by 3,500 plus 15% of its max Health, grant it Overshields, and surround the objectives with 8 
Chyrinka Pillars.
Location[]
Rewards[]
Tyana Pass[]
Tyana Pass is the primary source for the Warframe 
Citrine, her weapons 
Steflos and 
Corufell, the Arcane Enhancements 
Arcane Steadfast, 
Arcane Double Back, 
Primary Plated Round, 
Secondary Encumber, 
Secondary Kinship, and 
Belric Crystal Fragments and 
Rania Crystal Fragments which are used to purchase all of the above plus Citrine's Prex Card and the Citrine's Last Wish Factory Captura Scene from Otak on the Necralisk, Deimos.
Crystal Fragments are obtained from:
- Collecting 50 Citrine's Remnants awards 5 fragments (7 on The Steel Path), cycling between the two types.
- Completing a rotation awards 10 fragments (15 on The Steel Path).
| A | B | C | |||
|---|---|---|---|---|---|
 Endo x400 |
36.25% |  Corufell Barrel |
8% |  Citrine Blueprint |
9.3% |
| Corufell Blueprint |
10% |  Corufell Handle |
8% |  Axi A17 |
7.9% |
| Steflos Blueprint |
10% |  Corufell Receiver |
8% | Axi A18 |
7.9% |
 Neo A13 |
6.25% | Steflos Barrel |
8% | Axi G11 |
7.9% |
| Neo B9 |
6.25% | Steflos Receiver |
8% | Axi L6 |
7.9% |
| Neo E4 |
6.25% |  Steflos Stock |
8% | Axi O6 |
7.9% |
| Neo G7 |
6.25% | Neo A13 |
5.8% | Axi S16 |
7.9% |
| Neo M5 |
6.25% | Neo B9 |
5.8% | Axi S17 |
7.9% |
| Neo P7 |
6.25% | Neo E4 |
5.8% |  Citrine Chassis Blueprint |
6.1% |
| Neo Z11 |
6.25% | Neo G7 |
5.8% |  Citrine Neuroptics Blueprint |
6.1% |
| Neo M5 |
5.8% |  Citrine Systems Blueprint |
6.1% | ||
| Neo P7 |
5.8% | Arcane Double Back |
5.7% | ||
| Neo Z11 |
5.8% | Arcane Steadfast |
5.7% | ||
| Primary Plated Round |
5.7% | Secondary Encumber |
5.7% | ||
| Secondary Kinship |
5.7% | ||||
Locations:
Drop tables outdated? Readers can update Module:DropTables/data and cross reference with official drop tables on https://www.warframe.com/droptables.
Munio[]
Munio is the source for Tome Mods, as well as the components of the 
Mandonel.
Collecting 50 Vosphene Glyphs will reward 3 
Stela.
| A | B | C | |||
|---|---|---|---|---|---|
 x5000 Credit Cache |
22.5% | x7500 Credit Cache |
25% | Endo x1200 |
30% |
| Endo x600 |
17.5% | Mandonel Receiver |
17.5% | Mandonel Barrel |
15% |
 Entrati Obols x150 |
15% | Neo A13 |
7.5% | Mandonel Stock |
15% |
 Necracoil x15 |
10% | Neo B9 |
7.5% | Fass Canticle |
5% |
 Meso A7 |
5% | Neo E4 |
7.5% | Jahu Canticle |
5% |
| Meso B9 |
5% | Neo G7 |
7.5% | Khra Canticle |
5% |
| Meso F5 |
5% | Neo M5 |
7.5% | Lohk Canticle |
5% |
| Meso H7 |
5% | Neo P7 |
7.5% | Netra Invocation |
5% |
| Meso N17 |
5% | Neo Z11 |
7.5% | Ris Invocation |
5% |
| Meso V9 |
5% |  Entrati Lanthorn |
5% | Vome Invocation |
5% |
| Meso W4 |
5% | Xata Invocation |
5% | ||
Drop tables outdated? Readers can update Module:DropTables/data and cross reference with official drop tables on https://www.warframe.com/droptables.
Notes[]
- Belric's and Rania's Crystals can be scanned into the Codex via Codex Scanners or Synthesis Scanners. A minimum of 3 scans each reveals lore behind them and their ties to Citrine.
Belric Crystal Fragments and Rania Crystal Fragments are not affected by Resource Boosters or Smeeta Kavat's Charm.
Tips[]
- Citrine's Remnants/Vosphene Glyphs can appear on the minimap as a lootable item via Loot Radar.
- Because the mission runs on a time limit rather than needing to kill all enemies to pass a wave, players only need to hold off enemies from destroying the defense targets. Thus, abilities that Slow down enemies are no longer detrimental to mission time, unlike with standard Defense. However, stacking such abilities excessively can negatively impact the squad's kill count and by extension the spawn rate of Citrine's Remnants/Vosphene Glyphs.
- Warframes with superb aerial mobility can make gathering Remnants and Glyphs much easier.
- Titania's Razorwing and Jade's Glory on High are abilities that enable true flight, enabling better control for this.
- Chroma's passive enables him to triple-jump and perform two consecutive bullet jumps.
- Remnants and Glyphs spawn in abundance in the Void tunnel during the 30 second downtime between waves.
- Collecting enough Remnants during the downtime is recommended as both the Overshields and the Prismatic Ward/Chyrinka Pillar will be applied to the current defense target as soon as the wave begins.
Trivia[]
- The Corpus Defense tileset uses a retired Corpus Ship tileset, previously used on Xini when it was a Defense mission.
- Orowyrms can occasionally be seen passing through the Void tunnel.
- Tyl Regor mentions the tubemen, but the Grineer forces involved are Arid Grineer rather than the Drekar forces Regor associates with. One of Regor's lines when a new Grineer wave starts has him admonishing Lech Kril for ignoring the Tenno's presence on Mars, threatening to withhold any useful genes he finds if Kril does not take responsibility.
Patch History[]
Hotfix 35.5.7 (2024-04-17)
Changes to address feedback on Deep Archimedea Mirror Defense missions:
The following changes were made based on feedback received from players about the difficulty of Mirror Defense missions in Deep Archimedea, but they apply across Warframe.
- Made the following changes to The Hollow Vein:
- Greatly reduced how often it hits Defense targets with its ranged laser attack.
- Before: Due to Defense targets being much larger than players, they were applying several hit ticks in a row onto these targets resulting in massive damage.
- Now: it will only hit Defense targets once with its laser attack.
- Changed its AoE attack targeting logic to improve the frequency of when it is used.
- Before: Once the attack started and it was near something like a Defense target, it would trigger and linger indefinitely.
- Now: The attack will only trigger when players are nearby and will be canceled when players are no longer within its radius.
- Fixed a possible issue where Hollow Vein could theoretically make allies, Defense targets, and players hit by its laser attack permanently vulnerable to friendly fire.
- Greatly reduced how often it hits Defense targets with its ranged laser attack.
- Changed the amount that Citrine’s Remnants (Tyana Pass) and Vosphene Glyphs (Munio) heal their respective Mirror Defense target.
- Before: Collecting the required amount of the aforementioned pickups would restore 5,000 Health.
- Now: Collecting enough pickups will restore 3,500 Health plus 15% of the Defense target’s Max Health, ensuring the pickups scale better as levels increase while still maintaining a level of difficulty.
- The Auricle and Vitreum Defense targets now have a 75% Damage Reduction against Rogue Voidrig and Bonewidow weapons and abilities.
- Fixes:
- Fixed a script error when picking up Citrine's Remnants in the Tyana Pass Mirror Defense mission.
Update 35.5 (2024-03-27)
- Mastery-Rank Locked Inbox Messages
The following content is already locked behind Mastery Rank, but players receive details about it before reaching that Mastery Rank. Now, these messages will not be sent until players have met the Mastery Rank requirement.
- Otak’s Tyana Pass inbox message will now be delivered upon completing the Heart of Deimos AND reaching Mastery Rank 3.
- Tyana Pass originally did not have a Mastery Rank requirement, but we are adding it so as to not distract new players from the Main Questline.
Hotfix 35.0.4 (2023-12-20)
- Fixed enemies on Tyana Pass spawning in front of players.
- Fixed only receiving the first round Mirror Defense rotation rewards when playing a bounty on Munio (Deimos).
- Fixed Stalker being able to drop multiple items in Munio Mirror Defense.
Hotfix 35.0.3 (2023-12-18)
- Fixed a hole in the Mirror Defense, Munio tileset.
Hotfix 35.0.2 (2023-12-14)
- Fixed the Tyana Pass, Mars Mirror Defense mission not starting after entering the defense target’s radius.
Hotfix 35.0.1 (2023-12-13)
- Fixed a script error when closing the game during the new Mirror Defense mission on Deimos.
Update 35.0 (2023-12-13)
- DEIMOS EXPANSION: NEW NODES & MISSION TYPES
Completing the Whispers in the Walls Quest unveils five new nodes on Deimos to continue your excursions throughout Albrecht’s Laboratories. One of these new nodes feature a brand new mission type called Alchemy and four feature existing mission types (Assassination, Mirror Defense, Survival, and Exterminate) with an Entrati twist. All of these nodes are also available on The Steel Path!
- MIRROR DEFENSE (ENDLESS)
The Murmur is staging an attack against Albrecht’s Laboratories! They have pinpointed the Laboratories best defenses against them and it is up to you to protect against the onslaught.
How To Access:
Select the Munio node (default and Steel Path) on Deimos from the Star Chart or from the Laboratory Navigation in the Sanctum Anatomica.
How To Play:
Protect the Vitreum and the Auricle as the enemies alternate their attacks between the two. A rotation is complete once both have been defended.
Vosphene Glyphs are the key to triggering the Laboratories’ automated security system. Gathering the required amount will bolster the active defense target by surrounding it with offensive turrets. Doing so will also reward 3x Stela (5x on Steel Path).
Rewards
Notable rewards for completing a round of Mirror Defense include:
- New Tome Mods
- Mandonel Components
Update 33.0 (2023-04-26)
- Fixed issue with Mirror Defense rotations getting skipped after Host Migration.
- Fixed rare crash related to object rendering in Mirror Defense.
Hotfix 32.3.6 (2023-03-15)
- Mirror Defense (Tyana Pass) Drop Table Changes:
We have made the following changes to Mirror Defense’s drop table to make each rotation feel more rewarding by increasing your chance of earning Citrine, Corufell, Steflos, and the new Arcanes.
- Rotation A:
- Replaced the 3,000 Credits Cache and some Endo chance with Neo Relics.
- Rotation B:
- Decreased the drop chance of Neo Relics.
- Increased the drop chance of Corufell and Steflos parts, Primary Plated Round and Secondary Kinship.
- Rotation C:
- Decreased the drop chance of Axi Relics.
- Increased the drop chance of Citrine’s Blueprints, Secondary Encumber, Arcane Double Back, and Arcane Steadfast.
Visit the Public Drop Tables for the updated values.
- Changes:
- Changed the position of Citrine’s Remnants on the fan in the Void tunnel so that they are grouped together in the center of it for collection.
- Fixes:
- Fixed Tyana Pass, Mars being eligible for Kuva Lich missions if your Lich is on Mars.
- Since Kuva Lich missions are exclusively Grineer, this was creating spawning issues on the Corpus side of the Mirror Defense mission.
- Fixed new players being unable to use resource Extractors on Mars if you do not have Tyana Pass completed (which requires you to complete the Heart of Deimos Quest for it to appear in Navigation).
Hotfix 32.3.4 (2023-02-23)
- Added a custom mini-map marker for Citrine’s Remnants.
- Fixed Protea’s Grenade Fan’s Shield Satellites (held cast) and Wisp’s Reservoirs (Vitality Mote & Fused Reservoir) healing the Belric and Rania’s Crystals.
- This is a follow up fix to the one made in Hotfix 32.2.3 with the same reasoning/intention: Mirror Defense was designed to allow healing, grant overshields and provide active protection with the Prismatic Ward all through collecting Citrine’s Remnants instead of relying on Warframe and Weapon abilities.
Hotfix 32.3.2 (2023-02-16)
- Fixed being able to heal Belric and Rania’s Crystals through Warframe Abilities and Weapons.
- Mirror Defense was designed to allow healing, grant overshields and provide active protection with the Prismatic Ward all through collecting Citrine’s Remnants instead of relying on Warframe and Weapon abilities.
- Fixed the Mirror Defense rotation ending early and skipping the Venus side if a Host Migration occurs while defending the Mars side.
- Fixed duplicate Mirror Defense objective waypoints appearing when moving back to the Mars side, if a Host Migration occurs while defending the Venus side.
- Fixed seeing multiple Orowyrms while in the Void tunnel in the Mirror Defense mission.
- Fixed Tyl Regor appearing much lower in his transmissions in Mirror Defense if you enter the Defense area while a Lotus transmission is playing.
Hotfix 32.3.1 (2023-02-15)
- Fixed Script error related to collecting Citrine’s Remnants in Mirror Defense.
- Fixed Citrine’s Remnants missing their visual effect before disappearing in Mirror Defense.
- Fixed the wave timer in Mirror Defense resetting if a Host Migration occurs.
- Also fixed an issue of the UI timer and in-game timer having differences, which would cause each wave to take longer than intended.
Update 32.3 (2023-02-15)
- Introduced.
- ↑ "Mirror Defence was designed to allow healing, grant overshields and provide active protection with the Prismatic Ward all through collecting Citrine’s Remnants instead of relying on Warframe and Weapon abilities." - Hotfix 32.3.2 (2023-02-16) patch notes