"Who rules The Index? Find out when the bell rings!"

The Index is a Corpus Arena-style endless Mission organized by Nef Anyo and hosted by Cephalon Sark on Neptune, pitting Tenno and elite Corpus to fight for credits and other prizes.



Before entering the Index, the player initiating the mission must select an Investment amount in Credits that each squad member must pay in order to enter. There are three different investments:

Risk Wager Return Profit (at one round) Point Target
Low Credits64 30,000 Credits64 105,000 Credits64 75,000 50 Points
Medium Credits64 40,000 Credits64 175,000 Credits64 135,000 75 Points
High Credits64 50,000 Credits64 250,000 Credits64 200,000 100 Points

Each player in the squad will be asked to invest the same amount of credits, and in public matches, players will be matched with others participating in the same investment tier.

This Investment will determine the Point Target the Tenno team has, which is a designated amount of Index Points that the team must cumulatively deposit and score in the match. If the Tenno team achieves the Point Target during the match, their invested Credits will be returned and they will additionally receive the listed profit. The credit rewards are not split between each player; everyone receives the full amount. However, if the Tenno team wins the match by having more points than the opponent team of Anyo Corp but does not achieve the Point Target, their investment is reimbursed without interest for the last round. Previous rounds that had successfully completed the Point Target will still reward the team with the listed profit. If the team loses the match each player will lose their investment completely.

The listed return reward for winning is affected by a Credit Booster, although it does not appear on the mission complete reward screen (e.g. High Risk will reward Credits64 500,000 every round). However, doubled credits from the Daily First Win Bonus, via the first mission completed after receiving a Daily Tribute, does not apply to the winnings from the Index.

Index Points[]

The match consists of an endless number of rounds, with players voting to continue or extract after each successful round. The goal of each round is to earn Index score for the team through the collection of Index Points, which are dropped by participants killed in battle. Represented as green, glowing diamonds, Index Points can be collected by walking over them, and then deposited to a designated bank location in order to earn the actual Index score. Every point deposited will add 10 more seconds to the timer, prolonging the match duration. When an enemy scores, the timer will go down by 10 seconds per point.

A player can hold multiple Index Points at once and will gain bonus points for depositing large amounts at once, as seen in the table below. Bonus points will not affect the duration of the timer. However, holding points will apply the Financial Stress debuff which reduces the player's max health and shields, constantly drains energy, but provides a damage buff. All these effects are proportional to the number of Index Points held and are delivered through the Financial Stress debuff displayed by the player's HUD to the upper right. Health And Shield debuff is capped at 10% of maximum modded values or 10, whichever is greater. Damage buff is capped at +148.5% damage.

Points Held Bonus Total Efficiency
1 +0 1 +0%
4 +0 4 +0%
5 +2 7 +40%
9 +2 11 +22.2222%
10 +4 14 +40%
14 +4 18 +28.5714%
15 +8 23 +53.3333%
19 +8 27 +42.1053%
20 +10 30 +50%
24 +10 34 +41.6667%
25 +10 35 +40%

Bonus points cap at +10 when reaching 20 points, therefore it is not recommended to carry more than 20 points, as there is no benefit in holding more. It is most efficient to cash in at 15 points, since only 2 additional bonus points are gained by holding 20 points.

The players' team will win if they score more Index Points than the opposing team before time runs out. If by the end of the match the players happen to tie, the tie goes to Nef Anyo.

If players meet the Point Target and are ahead of the opposing team, the game pauses and an extraction menu appears. Should players choose to continue onto the next round, the Point Target resets and can be reached again to yield a bigger credit payout, otherwise, they can leave with all their accumulated rewards. The wager is only subtracted once at the start of the match, and will not be subtracted again for choosing to continue onto the next round. However, enemy levels will slowly increase for the duration of the whole match, and if players continue and lose a round - they will forfeit all rewards, including those for the previous rounds.

Specter Fill-Ins[]

The Index must be played with four players; however, randomized Warframe Specters will assist the player and fill in unused spots on the team. These Specters can be MagIcon272 Mag, FrostIcon272 Frost, WukongIcon272 Wukong, IvaraIcon272 Ivara, EmberIcon272 Ember or VoltIcon272 Volt, each equipped with a small assortment of weapons and various color customizations. Their AI is akin to the advanced AI of the Investors, incorporating strategic use of abilities and parkour maneuvers. Additionally, they will attempt to protect the Specter or player with the highest points, loosely following them to provide some cover.

Warframe Specters will scale, however they can be more easily defeated than the player can in most cases, potentially giving Investors an easy way to obtain points.


Health Orbs, Energy Orbs, and Ammo are only available at preset dispenser locations throughout the arena, spawning periodically. Companions and Gear cannot be brought into The Index though Warframe weapons, abilities, and mods will still function normally. Players have infinite lives, and will auto-respawn after 5 seconds of being killed or falling out of bounds.

Anyo Corp[]

Anyo Corp, also known as Brokers, are elite Corpus units that participate in the Index to oppose the Tenno. Unlike most bosses they are susceptible to most Tenno abilities, including NyxIcon272 Nyx's MindControl130xWhite Mind Control. However, all of them possess extremely durable armor and shields, and some have certain tricks up their sleeve that make them considerably more formidable than regular Corpus units. These Brokers are divided into 4 different groups, with each group being selected at random as the opponents for each game.

John Prodman[]

John Prodman is a legendary Corpus Prod Crewman that can be encountered in The Index after 1 hour has passed at any risk level. Known as Anyo Corp's "Employee of the Month", he drops an autographed poster when defeated, which can be placed in the Orbiter as a decoration once the mission is successfully completed.


Aside from the bonus Credits earned from completing an Index match, all Brokers have a chance to drop Index Mods. These mods enhance Companions and are special augments for certain Corpus-originating weapons:


Planet Mission Name Type Faction Level Mastery EXP
Neptune The Index: Endurance Arena Corpus 30 - 30 0
There are a total of 1 The Index: Endurance Name Missions

Operation: The Index Preview[]

These rewards were available from October 20, 2016 to October 27, 2016 to introduce the game mode for the first time.

5 completed matches 10 completed matches 100 total score in high risk
  • The Index Badge

Inbox messages[]

View Inbox Messages List

THE INDEX: Nef's "Investment Opportunity"


Have you seen this crap? Nef Anyo just created another scheme to milk suckers out of their credits. He calls it: The Index, but really, it's just wagering and bloodsport. Thing is Tenno, I like wagering and bloodsports are sort of your deal.

You get what I'm getting at? You go to this Index and fight against Nef's brokers. You'll win credits. I'll win credits. We'll all win credits. Except for Nef, he's going to lose a lot of credits. Just thinking about that makes me happy.

Your friend,

  • Nef Anyo: "Has the Void been good to you? Has it taken your seed and turned it into a tree of wealth? Well, what if I told you the Void could turn that wealth into a fortune? It can, but only if you have faith. Ask yourself, 'Do I trust in the Void? Am I willing to put my investment into its glorious hands? Is my belief strong enough to reap its massive rewards?' Believer, if you're crying out 'YES!', then The Index is for you. The Index, it's where investors of faith seek fortune."

THE INDEX: On a roll!

Oh, Tenno, I tell you, this is getting good. We're on a roll and I don't want it to stop.

Here, take this, consider it good luck charm from your old pal, Darvo.

(Attachment: The Index Emblem)

THE INDEX: Jackpot

We did it, Tenno, we hit the big time. I'm going to cash-out now but if you want to keep "investing", go ahead. You can never have too many credits, that's what I always say.

I'm giving you a little toke of my appreciation. After all the credits you've earned me, it's the least I can do.


(Attachment: Exilus Warframe Adapter)


You don't stop do you, Tenno. I like that. And just seeing you take all those credits from Nef, it warms my heart.

Here, I have one last gift for you.



(Attachment: The Index Sigil)

Profit Considerations[]

Gameplay considerations aside, one way Index rounds can yield optimal credit profit is by scoring like so:

Risk Points required Optimal scores (With bonuses) Actual points picked up Profit per score
Low 50 23 + 23 + 4 15 + 15 + 4

Credits64 2206

Medium 75 23 + 23 + 23 + 7 15 + 15 + 15 + 5 Credits64 2700
High 100 23 + 23 + 23 + 23 + 8 15 + 15 + 15 + 15 + 6 Credits64 3030

It is worth noting that in random teams (with few or no Mod TT 20px Corrosive Projections or other armor-bypassing mechanics) killing speed is often much better in Low or Medium risk matches than in High risk ones.

Also, it is more profitable to stay in a match for a few rounds rather than leave and enter constantly, since wager is only paid once per match and profit is earned for each round. Staying longer reduces both the wager's effect on earnings and time wasted in transitions between matches. This has to be balanced against the enemy team's levels slowly rising for the duration of the entire match, thus making it more and more difficult to kill them with each subsequent round. E.g. by the end of 1st round enemies would be around (depending on how quickly the round ended) level 70-80, by the end of 2nd around 100-110, and so on.

All things considered, random and less-optimized teams can potentially gain significantly higher overall earnings-per-hour in Low or Medium risk matches rather than in High risk.



  • Most players will farm Credits often throughout their game progression, for which the Index is currently the best game mode. It's worth dedicating (and perhaps favoriting) an Index-specific loadout slot to.
  • Having a credit booster doubles the reward. For example, if a double credits event is active and you hold a credit booster, you get quadruple the reward.
  • As stated earlier, it is advised to bank in at 15 index points and no more, leading to the most efficient gains per point. If no carrier or other well-equipped player is present it can be safer to score at 5 points instead.
  • Hosting a High Risk Index mission from Clan Dojo navigation will almost always guarantee the Corpus Outpost (ice) tileset.
  • Host positions determine enemy spawn locations. Thus, having the host play in a corner of the map will make it more likely for enemies to spawn closer together to reduce need for chasing them around the arena.
  • It is advised to use Mod TT 20px Enemy Radar, Mod TT 20px Enemy Sense, Mod TT 20px Stealth Drift, and/or Mod TT 20px Vigilante Pursuit to spot enemies from further than the base 30 meters.
  • RhinoIcon272 Rhino's IronSkin130xWhite Iron Skin and RevenantIcon272 Revenant's MesmerSkin130xWhite Mesmer Skin allow them to ignore financial stress penalties as long as they can keep these abilities up, making them effective Index point carriers.
    • WispIcon272 Wisp is also a decent point carrier due to her stealth passive while in the air, combined with the buffs provided by her Reservoirs130xWhite Reservoirs.
  • MesaIcon272 Mesa's Peacemaker130xWhite Peacemaker and ProteaIcon272 Protea's BlazeArtillery130xWhite Blaze Artillery are perfect offensive choices to quickly kill the enemies from afar without the need to aim precisely, and let a teammate collect Index Points.
    • Protea's Dispensary130xWhite Dispensary can also help provide crucial ammo and energy pickups for herself and others, given the severely limited supply in an Index combat zone.
  • The following Warframes are effective at area denial to prevent Brokers from scoring:
  • Khora is able to bring Venari130xWhite Venari into The Index as she is a Warframe Ability, who can be modded with Mod TT 20px Animal Instinct (Mod TT 20px Primed) and Mod TT 20px Fetch.
  • WukongIcon272 Wukong possesses high survivability in his passive and CloudWalker130xWhite Cloud Walker, along with his CelestialTwin130xWhite Celestial Twin dealing significant damage.


  • Doubled credits from the Daily First Win Bonus, via the first mission completed after receiving a Daily Tribute, does not apply to the winnings from the Index, although "Mission Results" will claim that the bonus has been applied.
  • Host Migration between rounds (e.g. the Host leaving) will almost every time cause the game to be unplayable for the remaining squad members. This can only be fixed with a restart of the game, therefore losing the progress.


Patch History[]

Update 36.0 (2024-06-18)

  • Fixed Index Mission Progress screen having broken UI elements.
  • Fixed function loss for remaining player(s) if both Host and another Client leave at the end of a round in The Index.
  • Fixed being unable to view the Mission Success screen after finishing an Index mission.
  • Fixed Shields in The Index not scaling like the rest of the game.

Hotfix 35.5.9 (2024-05-01)

  • Fixes towards the Index intro cinematic playing for Clients upon returning from Host migration (after Host had “Cashed Out”), which was locking them in place unable to fight against attacking enemies.
    • This is a temporary fix to help prevent the cinematic from playing, but there is still a chance it may occur. We have a more robust code fix coming in the next Cert update (learn more about Cert updates here).

Hotfix 35.5.8 (2024-04-24)

  • Fixed a lack of collision in certain areas of the Corpus-Outpost Index Arena.

Hotfix 35.5.7 (2024-04-17)

  • Fixed being unable to close out of the Mission overview screen using the same binding you opened it with in Index missions.

Hotfix 35.1.2 (2024-02-28)

  • Fixed Translocators (where enemies spawn from) in The Index missions creating a huge field of low-rest blue particles that hang in the air indefinitely.

Update 35.1 (2024-02-20)

  • Fixed Index scoreboard UI overlapping with the other options in the mission progress screen.

Update 35.0 (2023-12-13)

  • Fixed Warframe abilities being able to target invulnerable turrets in the Index.
    • This fixes issues where certain abilities, like Protea’s Blaze Artillery, would target the turrets despite being unable to harm them.
  • Fixed hitch occurring upon opening the Index scoreboard.

Hotfix 34.0.5 (2023-10-26)

  • Fixed being unable to exit the View Mission Progress screen with a controller while in The Index.

Hotfix 33.0.9 (2023-05-11)

  • Fixed a script error that was causing the Index vote screen to soft lock players from their game at the end of a round.
    • We will be working on a Script that will refund the Credits players would have lost being forced to quit the game at the end of their mission in the Index. We will update this thread once we have more details.
      • Update 7:15pm - We have finished running a Script to refund any Credits that were lost due to the Index Mission screen soft lock! Any player who lost Credits due tot the soft lock within the Index prior to the Hotfix should now see them returned to their account.

Update 33.0 (2023-04-26)

  • Added Mission Tips to the Risk Investment selection screen for The Index.
  • Fixed Claims Investigation Units from the Index rapidly teleporting between their translocators many times in rapid succession.

Update 32.0 (2022-09-07)

  • The Index Investment screen has been refreshed and will now apply selected themes.
  • Fixed the Auditor in the Index deploying laser barriers nowhere near its current position.

Update 31.6 (2022-06-09)

  • Fixed case of Ved Xol getting stuck while trying to melee with his Prova in the Index.

Update 31.0 (2021-12-15)

  • Fixed Transferring between Operator and Warframe in The Index would duplicate the Financial Stress debuff.

Update 30.7 (2021-09-08)

  • Fixed the Financial Stress debuff not being removed after Yareli scores in The Index while riding Merulina.
  • Added scrollbar to Index result screen
  • Fixed an issue where when playing an Index mission and using Transference would allow the Warframe to regain maximum Shields without being affected by Financial Stress.

Update 30.5 (2021-07-06)

  • Fixed functionality loss when Void Dashing in the air while playing The Index.
  • Fixed a green orb appearing at the Warframe's legs after picking up points in the Index.
  • Fixed strange orb appearing in the Operator while in Void Mode while playing Index missions.

Hotfix 29.6.8 (2021-01-25)

  • Fixed the Chat window rendering behind The Index Mission Progress screen.

Update 29.5 (2020-11-19)

  • Fixed skybox in the Index Outpost tileset appearing as a pure white light when viewed from a distance.

Hotfix 28.0.5 (2020-06-17)

  • Fixed Warframe Specters running and spinning in place on a wall in the Corpus Outpost Index level.

Update 28.0 (2020-06-11)

  • Fixed Derim Zahn’s turrets never shutting off in The Index.

Hotfix 27.4.1 (2020-05-01)

  • Fixed a script error when dying in The Index.

Hotfix 27.3.11 (2020-04-09)

  • Fixed non-Sentient/Amalgam enemies being affected by diminishing returns when affected by Limbo’s Stasis. This specifically applies to enemies in the Index.

Hotfix 27.3.10 (2020-04-08)

  • Fixed a script error that could occur if Index points were deposited right as you left the Index mission.

Update 27.2 (2020-03-05)

Update 27.1 (2020-02-04)

  • Optimized real time lighting in the Jupiter Gas City Index tileset.
  • Fixed Index enemies not attacking Gara’s Mass Vitrify wall.
  • Fixed damage done by Oberon’s Hallowed Ground during The Index will dramatically increase if the player is in Operator mode.

Hotfix 25.7.2 (2019-08-30)

  • Potential fix for UI lockup when leaving squads setting up for the Index.

Hotfix 25.4.1 (2019-07-24)

  • Fixed scoring 30+ Index points at once resulting in a huge damage boost. Dying / Reviving would remove the damage boost.
  • Fixed Index not tracking kills done by Umbra or spawned allies (Equinox Duality, etc) when the player is in Operator mode.
  • Fixed being stuck in Spectator Mode after dying at the end of the Round as a Client and then becoming the Host.
  • Fixed Revenant's Enthralled enemies not counting towards kills in Index.
  • Fixed a second vote triggering if there are multiple players left after a Host migration.
  • Fixed being in a broken state as a Client if the Host crashes after completing an Index wager.

Update 25.0 (2019-05-22)

  • (Undocumented) Updated Gas Works map.

Update 23.10 (2018-10-12)

  • Fixed issue where the Index would get stuck if there was a Host migration during the rewards screen between rounds.

Update 23.8 (2018-09-12)

  • Fixed a crash that could occur if two people managed to tether themselves together (two M-W.A.M. Brokers in the Index).
  • Fixed John Prodman spawning but is nowhere to be found in The Index.
  • Fixed voice sounds for Rana Del (Index).

Hotfix 22.20.8 (2018-06-05)

  • Fixed M-W.A.M Index enemies freezing and flickering when killed.

Update 22.20 (2018-05-17)

  • Fixed Energy pickups in The Index getting duplicate spawns every time a Client picked one up.

Update 22.15 (2018-03-07)

  • Fixed a script error when a Host migration occurred in The Index that resulted in the Timer not progressing.

Hotfix 22.13.4 (2018-02-22)

  • Fixed not respawning in The Index if you die just as the Wager is met.
  • Fixed losing your Credit investment in The Index if you win the match but don’t meet the Wager target. It now matches the UI description.

Hotfix 22.12.4 (2018-02-13)

  • Fixed Index missions in the Glast Gambit quest rewarding the wrong amount of Credits, resulting in players losing Credits even when winning.

Hotfix 22.12.3 (2018-02-12)

  • Fixed not being able to pick up Index points as a Client if the pick-up was too far away from you from the Host's point of view.

Update 22.12 (2018-02-09)

The Index Changes

Co-op games and the Index, not always a recipe for success. Often times your time spent in the Index is at the liberty of your squad mates. We have added individual extraction to The Index! When players reach their wager target, if they're winning, the game will pause and bring up the defense reward screen. Players will have the option of extracting or continuing.

If players continue, they earn the credits reward, and the wager target is reset so that they have the opportunity to reach it again for more rewards. If players extract, the game ends and they collect all the rewards they managed to earn. The initial investment fee is only taken away once, regardless of the number of times the reward was earned. If time runs out and players are losing, they forfeit all rewards.

  • Required points per tier are now 50/75/100.
  • Increased the required Index points from 25/50/100 to 50/100/200.
  • Enemy levels scale half as fast.
  • Changed the investment costs from 45k/60k/75k to 30k/40k/50k, and changed the credit returns from 120k/195k/275k to 105k/175k/250k. The amount of profit for each tier remains the same at 75k/135k/200k.
  • Changed the rewards to give the total credit return and take away invested credits, instead of combining them into the net profit.

Update 20.0 (2017-03-24)

  • All of the Index mission options available on The Index node on Neptune have been removed, except for the Endurance mode. This node is optional, and is not required to complete Neptune. Since Endurance modes play out with no explicit end, we've made all Index enemies drop all Index exclusive mods so that you can remain in the same Endurance mission without missing out on drops that the enemies don't spawn.

Update 19.6 (2017-01-11)

  • Fixed performance issues.

Hotfix (2017-01-05)

  • Fixed a rare progression stopping bug in The Index if players are losing but then score enough to win just before the round ends.

Hotfix 19.5.6 (2017-01-04)

  • Fixed absent transmissions causing a progression stopping bug.

Hotfix 19.5.5 (2017-01-03)

  • The Index missions are no longer required as part of Neptune's completion.
  • Fixed not being able to fully unlock Neptune due to The Index.

Hotfix 19.5.3 (2016-12-23)

  • Fixed points scored in the last round not counting towards your Wager score.

Update 19.5 (2016-12-22)

  • The Index was partially revamped, 2 new mods and a new team added.

Update: The Index Preview (2016-10-20)

  • Introduced.

Last updated: Update 23.10 (2018-10-12)

See Also[]