Affinity

Affinity is the in-game mechanic for experience points. Warframes, Archwings, Companions and weapons are all capable of earning Affinity. It is earned by killing enemies, hacking terminals, completing objectives/Missions/challenges, 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, or 7 days with the ‍ 80 booster.

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

Acquisition

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.

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. 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.

Bonus Affinity

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.

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.

파일:Affinity Progress.jpg

Pie chart illustrating the proportion of each level of the total affinity required to rank any item from unranked to 30.

Cumulative Affinity Requirements

Level	Warframe/ Sentinel	Weapon	Level	Warframe/ Sentinel	Weapon
1	1,000	500	16	256,000	128,000
2	4,000	2,000	17	289,000	144,500
3	9,000	4,500	18	324,000	162,000
4	16,000	8,000	19	361,000	180,500
5	25,000	12,500	20	400,000	200,000
6	36,000	18,000	21	441,000	220,500
7	49,000	24,500	22	484,000	242,000
8	64,000	32,000	23	529,000	264,500
9	81,000	40,500	24	576,000	288,000
10	100,000	50,000	25	625,000	312,500
11	121,000	60,500	26	676,000	338,000
12	144,000	72,000	27	729,000	364,500
13	169,000	84,500	28	784,000	392,000
14	196,000	98,000	29	841,000	420,500
15	225,000	112,500	30	900,000	450,000

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 Level^0.5)

파일:Affinity.jpg

Standardized affinity scaling. Y-axis indicates the ratio of affinity at current level to base affinity, X-axis indicates the difference between current level and base level.

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.

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

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.
• You won't receive affinity after your mastery rank test.

See also

• Mastery Rank