Knockdown b Knockdown is a Status Effect that causes enemies to be knocked prone to the ground, leaving them vulnerable to any attacks and Ground Finishers. A player's open Esc  menu will be abruptly closed if knocked down. After receiving a knockdown, inputting a jump will trigger a neutral getup, while directional keys will cause the Warframe to roll in that direction.

Right after being knocked down, the Warframe will flash in their energy colors briefly. Jumping or rolling during the flash will allow the Warframe to stand up or roll more quickly, allowing players to act earlier.

Knockdown and stagger animations will not be played when a player successfully resists a knockdown or stagger. Knockdown resistance can be obtained through any of the means mentioned in the section on sources of knockdown resistance.

Sources of Knockdown[]





Sources of Knockdown Resistance[]

Any source of Status Immunity will prevent knockdown. This includes Invulnerability and Overguard.


Wielding explosive power and incredible stamina, AtlasIcon272 Atlas strengthens his insurmountable durability through battle. Atlas possesses various passive mechanics highlighted in the tabs below:

Strong as the mountain, Atlas is immune to Knockdown b Knockdown while in contact with the ground.

  • Knockdown immunity does not apply while in the air.
  • Does not apply to pushback effects.
  • Does not prevent the recoiling effect from firing powerful Archguns such as Corvas Corvas, Velocitus Velocitus, and Larkspur Larkspur in non-Archwing missions.

Rubble is a pickup item unique to Atlas that drops from petrified enemies and Rumblers130xWhite Rumblers on death. Rubble restores Health to Atlas if he is injured; if Atlas is at full health, Rubble instead grants additional Armor that decays over time.


A piece of Rubble

  • Each petrified enemy and each Rumbler will drop 1 piece of Rubble that restores 50 health or provides 50 armor. Rubble will remain on the ground for 30 seconds before crumbling away if left untouched.
    • Enemies petrified by Mod TT 20px Path of Statues' rock trail, Petrify's flash, and the summoning of Rumblers are eligible to drop Rubble.
    • Petrified enemies killed by Landslide130xWhite Landslide grant 75 health or armor from their dropped Rubble.
    • Rumblers that sustain damage to their health will grant less health points or bonus armor from their dropped Rubble.
    • Rubble will not grant armor if at least 1 health point is missing from Atlas' maximum health pool. Excess health points gained will not overflow into bonus armor points.
  • Rubble armor is displayed in a circular gauge on the HUD above the ability icons.
    • The current number of bonus armor is shown below the gauge and will visibly subtract as bonus armor decays or add as Atlas picks up new Rubble.
    • Armor bonus is capped at 1,500 points.
    • Bonus armor decays at a rate of 5 armor points per second.
    • Upon picking up Rubble to gain bonus armor, bonus armor decay is paused for 2 seconds. Picking up Rubble to restore health points will not pause armor decay.
    • Bonus armor will not be lost if the player falls out of bounds, but will be lost in the event of a host migration.
    • The stone icon in the center of the gauge will enlarge or shrink depending on the amount of bonus armor stored. At 0 bonus armor, it remains a pebble; at 1,500 bonus armor, it becomes a large boulder.
    • Rock formations will appear on Atlas' body as he accumulates bonus armor.
  • Rubble pickup can be Mod TT 20px vacuumed by Sentinels or the Warframe's innate vacuum radius, or Mod TT 20px fetched by Companions.
  • Rubble pickups resemble a piece of stone encased in a translucent layer of reflective rock-shaped metal, which is tinted in Atlas' chosen Warframe energy color.
  • Rubble pickups spawned when a petrified enemy or Rumbler dies while airborne will fall to the ground.

Main article: Rubble Heap

Rubble Heap is a Warframe Augment Mod for AtlasIcon272 Atlas' passive that makes Landslide130xWhite Landslide cost no energy, increases its damage, and increases its speed when his Rubble count is above a threshold of 1400.

Rank Damage & speed multiplier Cost
0 1.25x 6
1 1.5x 7
2 1.75x 8
3 2x 9

ValkyrIcon272 Valkyr is nimble, able to recover from Knockdown b Knockdown 50% faster and is immune to Hard Landings, landing with no touchdown delay.

  • Valkyr's immunity to hard landings prevents her from triggering Mod TT 20px Heavy Impact.


DreadMirrorModx256 DreadMirror130xWhite
Dread Mirror

Rip the life force from an enemy and use it as a shield that captures damage. Charge to channel the captured damage into an explosive projectile.

Introduced in Update 24.0 (2018-11-08)

AbilityStrengthBuff Strength:1 / 1.5 / 1.75 / 2 x (damage capture multiplier)
AbilityDurationBuff Duration:13 / 15 / 18 / 20 s (mirror duration)
AbilityRangeBuff Range:30 m (pounce range)
6 / 7 / 8 / 10 m (explosion radius)

Misc: 8 m (stagger radius)
40% (instant kill threshold)
10% (health to heart damage)
20% (health to heart damage on instant kill)
100 (mirror contact damage)
100%/s (charge damage per sec)


KineticPlatingModx256 KineticPlating130xWhite
Kinetic Plating

Generate armor plating that converts a portion of absorbed Kinetic Damage (Physical, DmgFireSmall64Heat, DmgColdSmall64Cold, and DmgBlastSmall64Blast) into Energy. Also protects Gauss from being staggered or knocked down. Damage Resistance is relative to the battery level.

Introduced in Update 25.7 (2019-08-29)

AbilityStrengthBuff Strength:14 - 70% / 16 - 80% / 18 - 90% / 20 - 100% (damage reduction)
AbilityDurationBuff Duration:15 / 20 / 25 / 30 s (duration)
AbilityRangeBuff Range:N/A

Misc: 0.1% (battery drain per hit)
1% (battery drain per second)
0.25% (battery charge per melee attack)
2 / 3 / 4 / 5 % (energy restore per hit)
50% (damage reduction cap at empty battery)
100% (damage reduction cap at full battery)
100% (DmgSlashSmall64 Slash status chance for Mach Rush)
100% (base melee damage bonus and stagger chance from Redline)


MerulinaModx256 Merulina130xWhite

Summon Merulina, a rideable creature of the waves, and the inspiration for K-Driving. Merulina protects Yareli by absorbing a large portion of incoming damage.

Introduced in Update 30.5 (2021-07-06)

Strength: N/A
Duration: N/A
Range: N/A
Misc:4 s initial invuln. time
Secondary only restriction
Ragdoll immunity
Stagger & knockdown resistance
1.5 s dismount invuln. time

Strength: 3,000 / 4,500 / 6,000 / 7,500 HP health pool
Duration: N/A
Range: N/A
Misc:90% damage redirection
∞ duration
18 m/s move speed
21 m/s boost speed
3 m jump height
12 m double jump height
1.25 s jump charge time
17 m charged jump height
10 m dash distance
1,000 DmgImpactSmall64 Impact damage on landing
5 DmgImpactSmall64 Impact damage on slam shockwave
2 m slam shockwave radius




Patch History[]

Update 32.0 (2022-09-07)

  • Increased recovery window for self-knockdowns and self-staggers.

Update 27.2 (2020-03-05)

  • (Undocumented) Removed the blocking animation that used to occur when resisting a knockdown.
  • (Undocumented) Knockdown resistance now also works against staggers.

Hotfix 9.4.1 (2013-08-02)

  • Fixes for Constitution mod and Fortitude mod not working as intended.

Update 9.0 (2013-07-13)

  • Introduced