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Affinity is the in-game mechanic for experience points. Warframes, ArchwingsCompanions and weapons are all capable of earning Affinity. It is earned by killing enemies, hacking terminals, completing objectives/Missions, using Warframe powers, or picking up Affinity Orbs.

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, 7 days with the 80 booster, or 30 days with the 200 booster.

Some Prime Access packages also have special 90-day Affinity boosters.

## Acquisition

### Warframe Affinity

Warframes and weapons gain Affinity for several types of actions, detailed below. Unless specified otherwise, all Affinity gained uses the split according to the general rule: 25% of the amount goes to your Warframe and 75% of the amount is divided evenly among all equipped weapons (18.75% each for four weapons while Arch-gun is summoned through Archgun Deployer, 25% each for three, 37.5% each for two, or the full 75% if only one is equipped).[1]

• 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 (200 meters while using a Fosfor) when they kill an enemy, you gain the same total Affinity, distributed according to the general rule specified above. This doesn't reduce the Affinity gained by the killing player, and doesn't reduce the Affinity gained by other nearby allies. This applies to Archwing mode with much larger ranges for shared affinity.
• No weapons equipped. All of the Affinity goes to the Warframe.
• This applies when the only equipped weapons are overridden by ability-created ones. (E.g. Using while only having a melee weapon equipped.)
• For Archwing, in Archwing missions, the range within which to gain experience from allied Tenno is 4 times increased. (200 metres, 800 with a Fosfor)
• While in Railjack, the affinity range is infinite, and the above rules still apply to affinity gain.

### Operator Affinity

Operators gain their own Affinity, similar to a Warframe.

• Kill an enemy with an Operator ability. All of the Affinity goes to the Operator.
• Kill an enemy with a weapon. Half of the Affinity goes to the Operator and half to the killing weapon.
• Be near an allied Tenno when they kill an enemy. When within 50 meters of an ally (200 meters while using a Fosfor) when they kill an enemy, you gain the same total Affinity. The Affinity is distributed by 25% for the Operator, 37.5% for the Amp, and 37.5% for their unused melee slot.
• No Weapons equipped. All of the Affinity goes to the Operator.

### Companion Affinity

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. Affinity is split between the Companion and its weapon 50/50%.
• 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.
• Affinity is split between the Companion and its weapon 50/50%.
• 100% Affinity to the Companion in the absence of a weapon.

### Other Affinity Sources

• Use a Warframe/Archwing ability. Affinity equal to the base energy cost, in most cases.
• Hack a terminal. 50 Affinity.
• Complete an objective.
• 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.

Note: Special items such as Archwing weapons and Operator Amps can only receive Affinity while they are deployed. Otherwise they do not receive any Affinity at all, from any source.

## 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.

## Bonus Affinity

If a player completes a mission successfully they gain bonus Affinity based on the amount gained during the mission. Bonus Affinity is shown as yellow in the end of mission report and is an additional 125% of the base affinity earned for each item.

Due to bonus affinity, leveling an item up to a certain level in a single mission, and completing the mission, will result in that item becoming max rank:

• Getting an item to level 20 will result in that item becoming level 30.
• For 5 forma'd, Kuva Weapons or the Paracesis, getting to level 26 2/3 will result in a level 40 weapon.

## Affinity Range

When playing with other players, Affinity will be shared among you and your squad if they are within a 50-meter radius. This can be increased with Fosfors to 200m or Vazarin's Mending Unity passive (+25m at max rank). Some Warframe Abilities also have their ranges tied to this particular range.

 ENERGY50KEY2 PenanceSacrifice shields to boost reload, and fire rate while converting damage inflicted on enemies into health for Harrow and nearby allies. Shield Cost: 100% of shields & overshields on cast Strength:5% (lifesteal on hit)20% / 25% / 30% / 35% (fire rate bonus)40% / 50% / 60% / 70% (reload speed bonus) Duration:4 s (base time)1.25 / 1.33 / 1.43 / 1.54 s (bonus per 100 shields) Range:N/A Misc:50 m (affinity range)

 ENERGY100KEY4 CovenantProtect nearby allies with an energy force that absorbs all damage and converts it to a Critical Chance bonus for all those under the Covenant. Headshots are amplified even further. Strength:1.50% (critical per 100 damage) Duration:3 / 4 / 5 / 6 s (invulnerability time)6 / 8 / 10 / 12 s (critical chance time) Range:N/A Misc:4.0x (headshot multiplier to bonus critical chance)50 m (affinity range)

 ENERGY100KEY4 BlessingRestore the health and shields of allies within Trinity's Affinity aura while giving them some damage resistance. Strength:40% / 50% / 75% / 80% (shield/health restoration)25% / 30% / 40% / 50% (damage reduction) Duration:3 / 5 / 7 / 10 s (buff duration) Range:N/A Misc:50 m (affinity range)75% (damage reduction cap)

In addition, some Warframe Augment Mods may augment an ability with a mechanic tied to Affinity Range such as .

Due to the sheer scale of Empyrean missions, this Range limit is ignored in regards to sharing Affinity.

## Level Requirements

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.

Cumulative Affinity Requirements From Rank 0
Level Warframe/
Sentinel
Weapon Level Warframe/
Sentinel
Weapon
1 1,000 500 21 441,000 220,500
2 4,000 2,000 22 484,000 242,000
3 9,000 4,500 23 529,000 264,500
4 16,000 8,000 24 576,000 288,000
5 25,000 12,500 25 625,000 312,500
6 36,000 18,000 26 676,000 338,000
7 49,000 24,500 27 729,000 364,500
8 64,000 32,000 28 784,000 392,000
9 81,000 40,500 29 841,000 420,500
10 100,000 50,000 30 900,000 450,000
11 121,000 60,500 31* 480,500
12 144,000 72,000 32* 512,000
13 169,000 84,500 33* 544,500
14 196,000 98,000 34* 578,000
15 225,000 112,500 35* 612,500
16 256,000 128,000 36* 648,000
17 289,000 144,500 37* 684,500
18 324,000 162,000 38* 722,000
19 361,000 180,500 39* 760,500
20 400,000 200,000 40* 800,000

*Only for and Kuva Weapons. Note that this chart does not accurately reflect on total cumulative Affinity needed to rank up to 40 as you have to Forma the weapons five times in order to increase the max rank to 40.

The cumulative Affinity to rank for the Paracesis and Kuva Lich weapons including Forma cycles is as follows:

Total Cumulative Affinity Requirements From Rank 0
Level Weapon
31 930,500
32 962,000
33 1,506,500
34 1,540,000
35 2,152,500
36 2,188,000
37 2,872,500
38 2,910,000
39 3,670,500
40 3,710,000

## Enemy Affinity Scaling

Main article: Enemy Level Scaling

When you kill an enemy, the Affinity gained is shown on screen underlined in blue. The formula enemy affintiy scales at is as follows:

$\text{Affinity Multiplier} = 1 + 0.1425\times\text{Current Level}^{0.5}$

Note that the base affinity multiplied by the Affinity Multiplier value is also rounded down to a whole number, e.g. 62.7 affinity will be rounded down to 62.

Because the square root is taken of the enemy's current 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-mid level enemies instead of taking on high level enemies.

For further reading on this subject, consider the Affinity and Affinity Density chapters of the Enemy Level Scaling article.

## Farming Locations

These are based on opinions and may not be 100% true. These should be viewed as advice for farming Affinity until better facts are proven.

Starchart Missions
Target Planet Name Type Level Tile Set
Sedna Hydron Defense 30 - 40 Grineer Galleon
Saturn Helene Defense 21 - 26 Grineer Galleon
Pluto Oceanum Spy 32 - 36 Corpus Ship
Sedna Adaro Exterminate 32 - 36 Grineer Asteroid
• Hydron is a common spot for general Affinity farming, with Helene being a more accessible alternative, albeit netting less Affinity overall due to the lower level of enemies.
• Oceanum can be stealthily speed ran by more advanced players, hacking all three data vaults without being detected to farm for Affinity for a particular weapon.
• Adaro can be used to level up weapons by taking advantage of a stealth Warframe or a Warframe that can force enemies to sleep (for example , , or ) to gain Stealth Kill Affinity Bonus. If leveling up guns, make sure to equip a mod that reduces its noise level, such as or , if the gun is not innately silenced.
Archwing Missions
Target Planet Name Type Level Tile Set
Neptune Salacia Mobile Defense 27 - 32 Corpus Ship (Archwing)
Other Locations
• Dark Sector missions are scattered throughout the Star Chart. These provide bonus Affinity gain to specific weapon classes.
View Missions List
Planet Mission Name Type Level Resource Bonus Affinity Bonus Weapon Affinity Bonus
EarthCobaDefense6 - 1615%12%8% on Melee
EarthTikalExcavation6 - 1615%12%8% on Melee
VenusRomulaDefense8 - 1810%10%5% on Rifles
VenusMalvaSurvival8 - 1810%10%5% on Rifles
MarsWahibaSurvival10 - 2020%15%10% on Pistols
MarsKadeshDefense10 - 2020%15%10% on Pistols
PhobosMemphisDefection15 - 2525%18%13% on Melee
CeresGabiiSurvival15 - 2535%26%21% on Melee
PhobosZeugmaSurvival15 - 2525%18%13% on Rifles
CeresSeimeniDefense15 - 2535%26%21% on Melee
JupiterCameriaSurvival20 - 3020%15%10% on Shotguns
JupiterSinaiDefense20 - 3020%15%10% on Melee
EuropaCholistanExcavation23 - 3325%18%12% on Melee
EuropaLarzacDefense23 - 3325%18%12% on Pistols
UranusAssurSurvival25 - 3525%18%13% on Melee
SaturnPiscinasSurvival26 - 3620%15%10% on Shotguns
SaturnCaracolDefection26 - 3620%15%10% on Rifles
UranusUrDisruption30 - 3525%18%13% on Pistols
NeptuneYursaDefection30 - 4030%23%18% on Shotguns
NeptuneKelashinSurvival30 - 4030%23%18% on Rifles
ErisZabalaSurvival35 - 4530%23%18% on Pistols
PlutoHieraconExcavation35 - 4535%30%25% on Pistols
SednaAmarnaSurvival35 - 4525%18%13% on Rifles
ErisAkkadDefense35 - 4530%23%18% on Melee
SednaSangeruDefense35 - 4525%18%13% on Melee
PlutoSechuraDefense35 - 4535%30%25% on Rifles
There are a total of 26 Dark Sector Missions.
• Sanctuary Onslaught and Elite Sanctuary Onslaught are the best locations for Affinity farming, spawning a high volume of enemies in a short amount of time. Normal Sanctuary Onslaught can be used for Warframe, weapon, and companion Affinity farming, but the elite version restricts access to only max ranked Warframes.
• Endless Void Fissure missions provide Affinity gain bonuses for the duration of the mission after opening a certain number of Void Relics, up to a maximum of 2x Affinity gain at 16 relics opened.

## Notes

• 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.
• Mastery Rank Tests will not reward Affinity upon completion.

## Patch History

• The Rank Up FX for Warframes, Weapons, and Companions has been given a refresh! This FX also now applies your chosen Energy color instead of the default.
• Killing enemies with Operator abilities (Void Blast, Void Dash) will now grant the kill Affinity to the equipped Amp when possible.
Changes to Sentinel XP distribution

Based on reports and experiences with slow-ranking Sentinels, we have changed the way Experience is distributed amongst your feisty friends.

• Previously:
• Sentinel kills would split experience between your Sentinel’s weapon and your Warframe, so your Sentinel itself would miss out on experience.
• Weapon kills would split evenly between your Warframe and your Weapon (50% each), then a 42% bonus chunk of experience would be given to the Sentinel and its weapon (21% each). Note that the total XP earned was 142% of what you saw on the screen – now it will be 200%.
• Now:
• Regular weapon kills divide experience evenly between your weapon and your Warframe (50% each).
• Kills using a Warframe ability give all the experience to the Warframe (as before).
• Sentinel weapon kills divide experience evenly between your Sentinel and its weapon (50% each).
• Kills using a precept give all the experience to your Sentinel (as before).
• Experience from other players (shared experience) is split evenly amongst your gear as follows: a quarter goes to your Warframe and a quarter goes to each of your weapons (25% each). If you have a sentinel equipped, a 100% bonus chunk of experience is split evenly between your Sentinel and its weapon (50% each).
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