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Affinity is only shown numerically in the player's profile. Elsewhere, they are shown only as progress bars to the next level for that piece of equipment, such as in the Arsenal, during missions, or in the end-mission report.
Upon gaining enough Affinity, equipment will rank up and (once the equipment's rank exceeds a player's Mastery Rank) gain one extra point of Mod capacity (two points when supercharged via an Orokin Catalyst or Orokin Reactor), used for applying mods. Affinity is stored in each specific item, not the player's character/account; if an item is sold or used in crafting, it loses all of its associated Affinity and ranks.
Affinity indirectly affects a player's Mastery Rank. A player gains 200 Mastery points per affinity level on a previously unranked Warframe, Archwing or Companion, and 100 Mastery points per level on a previously unranked weapon. Once a player has acquired sufficient Mastery points, they can take the test to increase their Mastery Rank.
The amount of Affinity a weapon or frame has earned during a mission can be seen in the post-mission report, just to the left of the reward info box, where it is referred to as XP (experience).
Using the Affinity Booster, purchasable for 40, doubles Affinity gain for 3 days, or 7 days with the 80 booster.
Some Prime Access packages also have special 90-day Affinity boosters.
Warframes and weapons gain Affinity for several types of actions, detailed below. Unless specified otherwise, all Affinity gained uses the same split: 25% of the amount goes to your Warframe and 75% of the amount is divided evenly among all equipped weapons (25% each for three, 37.5% each for two, or the full 75% if only one is equipped).
- Kill an enemy with a Warframe ability. All of the Affinity goes to the Warframe.
- Kill an enemy with a weapon. Half of the Affinity goes to the Warframe and half to the killing weapon.
- Be near an allied Tenno when they kill an enemy. When within 50 meters of an ally when they kill an enemy, you gain the same total Affinity, split according to your own weaponry. This doesn't reduce the Affinity gained by the killing player, and doesn't reduce the Affinity gained by other nearby allies. This does not apply to Archwing mode as it has much larger ranges for shared affinity.
- Use a Warframe ability. Affinity equal to the base energy cost, in most cases.
- As Update 15.8, it is still bugged. User sometimes gains no affinity from ability use.
- Hack a terminal. 50 Affinity.
- Complete an objective.
- Complete a Challenge. 1,000 or 5,000 Affinity, depending on the particular challenge.
- Collect an Affinity Orb. 100 Affinity.
- Scanning with the Codex Scanner.
- Scanning objects. 10 Affinity.
- Scanning enemies. Affinity equal to 1/3 of gain upon killing the enemy (rounded down).
- Stealth scan. Affinity equal to gain upon killing the enemy.
Companions gain their own Affinity, similar to Tenno.
- The Companion kills an enemy. Total Affinity upon kills is equal to that gained by Tenno. The owner of the Companion gains no Affinity.
- Kills with its weapon. 50% Affinity is split between the Companion and its weapon.
- Kills with an ability. 100% Affinity to the Companion.
- The Companion uses an ability. Amount varies by ability.[investigation needed] 100% goes to the Companion.
- A nearby Tenno, but not the Companion's owner, kills an enemy. Affinity gained by the Companion does not detract from that gained by its owner.
- 50% Affinity is split between the Companion and its weapon.
- 100% Affinity to the Companion in the absence of a weapon.
Stealth Kill Affinity Bonus
Killing unaware enemies will trigger a Stealth Kill Affinity Bonus, which increases the amount of affinity that a player gains from killing said enemy. A notification appears in a player's HUD to the left of the shield counter upon performing a stealth kill, which will display the bonus affinity value for that kill, as well as the time remaining for the combo. The default bonus affinity value is 100%, which can be increased by performing a subsequent stealth attack within 30 seconds of the previous one, which will add another 100% to the bonus value, e.g. killing a second enemy stealthily will grant a 200% affinity multiplier, the third granting 300%, and so forth until it caps out at 500%, whereupon any successive stealth kills will provide said bonus as long as they are made within the time limit. Stealth kill affinity bonuses can be initiated using any attack as long as the enemy is unaware of the player's presence, though melee weapons grant twice the amount of stealth kill affinity compared to ranged weapons or abilities.
The stealth kill affinity bonus resets if a kill is made on an alert enemy, or upon being attacked by an alert enemy. Only enemy units will trigger these affinity bonuses. Environmental objects like Corpus Turrets, Security Cameras, Sensor Bars, and Storage Containers will not reset the multiplier nor do they count as a stealth kill. Certain units like Sensor Regulators are also considered objects, and thus will not initiate stealth affinity bonuses.
Oddly enough, certain Warframe powers (like Paralysis) and Melee Combos that initiate stagger may initiate stealth kill affinity bonuses upon performing a Counterattack Finisher, even if the enemy was previously aware of the player.
Killing an enemy that spawned within 5 seconds will not count towards the stealth affinity multiplier.
If a player completes a mission successfully they gain bonus Affinity based on the amount of Affinity gained during the mission. Bonus affinity shown as yellow in the end of mission report and an additional 125% of the base affinity earned for each item.
To reach a given level from unranked, a Warframe or Sentinel needs 1000 × level2 Affinity in total. A weapon needs half that amount.
To reach the same level from the previous level, a Warframe or Sentinel needs 1000 × (2 × level − 1) Affinity. Again, a weapon needs half that amount.
Enemy Affinity Scaling
When you kill an enemy, the Affinity gained is shown on screen underlined in blue. It is calculated as:
Affinity = Enemy Base Affinity × (1 + 0.1425 × Enemy Level0.5)
Because the square root is taken of the enemy's level, the actual benefit of facing high-level enemies is minimal. For example, killing a level 100 Napalm would give 1213 Affinity, less than twice the Affinity you would get from a level 3 Napalm (623). Therefore, "farming" Affinity is easier when killing many low level enemies instead of withstanding very powerful ones.
- Fully ranked equipment still accumulates Affinity even though the mission end screen does not display it. The total Affinity can be seen from a player's profile page.
- Enemies in the Simulacrum when killed do not reward Affinity.
- You won't receive affinity after your mastery rank test.
|Currencies||Credits • Ducats • Platinum • Standing|
|General||Affinity • Clan • Daily Tribute • Focus • Foundry • Fusion • Key Bindings • Mastery Rank • Mods (Damaged) • Orbiter • Polarization • Trade System • Transmutation|
|Gameplay||Mission||Air Support • Alert (Tactical) • Archwing • Cell • Challenge Reward • Death • Death Mark • Enemy Behavior • HUD • Maneuvers (Archwing) • Matchmaking • One-Handed Action • Tile Sets • Mission|
|Stealth||Hacking • Noise Level • Stealth|
|Attributes||Weapons||Accuracy • Ammo • Attack Speed • Critical Hit • Damage • Fire Rate • Melee • Multishot • Projectile Speed • Punch Through • Recoil • Reload Speed • Status • Zoom|
|Warframe||Attributes • Armor • Health • Passives • Powers • Shield • Threat Level|
|Mathematical||Enemy Level Scaling • Maximization (Duration • Efficiency • Range • Strength) • User Research|