The Index is a Corpus Arena-style mission type hosted by Nef Anyo, in which Tenno and elite Corpus units fight to earn credits and other prizes.
Mechanics
The goal of the Index 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.
A player can hold multiple Index Points at once, and will gain bonuses the more Index Points they deposit at once, increasing the amount of Index score their team receives from said deposit (e.g. depositing 3 Index Points at once will grant 5 Index score instead of 3). Holding large numbers of Index Points will reduce the player's health however in a change known as Financial Stress, and if the player is killed their collected Index Points will drop as well, allowing the enemy to pick it up for themselves. The amount of Financial Stress is directly proportional to the number of Index Points being held, which is displayed by the player's HUD to the upper right.
Under normal rules, the first team to reach 60 Index score wins.
Investment
Before entering the Index, players must select an Investment amount in Credits that they must pay in order to enter. The amount of Investment is tied to the difficulty of an Index match, with more difficult matches requiring much larger Investments.
During the match, each player has a Personal Point Target, which is a designated amount of Index points that a player must personally deposit and score in the match. If a player achieves their Personal Point Target during the match, their invested Credits will be returned doubled after the match, earning the player profit. However, if the player wins the match but doesn't achieve their Personal Point Target, then their investment is only reimbursed without interest, and if a player loses the match they will lose their investment completely.
Endurance
Index Endurance is a variant of the mission mode, which has a limited duration timer compared to the standard game. The objective of Endurance is for the team to score more Index Points than the opposing team before the time runs out. Every Index Point deposited at the bank will add more seconds to the timer, prolonging the match duration.
Limitations
Energy and Health orbs are only available at preset dispenser locations throughout the arena, spawning periodically. Players are unable to use Companions and Sentinels during the match, and they are also unable to use Gear items.
The Brokers
Brokers are the elite Corpus units that participate in the Index to oppose the Tenno. These Brokers are divided into 3 different groups, with each group being selected at random as the opponents for a particular match.
Rewards
- 5 completed matches: The Index Badge, Access to The Index: Stage 2
- 10 completed matches: Exilus Adapter, Access to The Index: Endurance
- 100 total score in Endurance: The Index Sigil
Aside from the bonus Credits earned from completing an Index match, the enemy Brokers can also drop special Index Mods. Like the Executioner Mods introduced with Rathuum, these mods are special augments for certain weapons:
- Kinetic Ricochet (Tetra)
- Medi-Pet Kit (Kubrow/Kavat)
- Pain Threshold (Warframe)
- Shield Charger (Sentinel)
- Static Discharge (Prova)
- Thermagnetic Shells (Detron)
