Knockback

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Knock back.png
This American boot just kicked your ass back to Russia!
The Soldier

Knockback is the movement of a player caused by an outside source.

When taking damage from any source, a player will experience an amount of knockback that generally scales directly with the power behind the attack. For example, a point-blank Scattergun blast will push its recipient farther back than an uncharged Sniper Rifle shot. While most weapons inflict minor knockback at best, there are quite a few exceptions that inflict significant knockback and can have a dramatic effect on the battlefield. Significant sources of knockback will instantly interrupt any animations the victim is in, including taunts and consumption of a lunchbox item. Items that can reduce or prevent the effects of knockback include the Mantreads, the Quick-Fix's ÜberCharge, and the Cozy Camper. The only item that increases the effects of knockback is the Shortstop.

Explosions

The explosive projectiles fired by weapons such as the Rocket Launcher and Stickybomb Launcher are among the most powerful sources of knockback and can send victims flying through the air. Crouching or being airborne reduces air drag, greatly increasing the degree of knockback experienced. Classes that utilize explosives will often take advantage of this mechanic to propel themselves great distances.

Explosion sources
Rockets Rocket Launcher Direct Hit Black Box Rocket Jumper Liberty Launcher Cow Mangler 5000
Rocket Launcher1 Direct Hit Black Box Rocket Jumper2 Liberty Launcher Cow Mangler 5000
Original Beggar's Bazooka
Original Beggar's Bazooka
Grenades Grenade Launcher Loch-n-Load Loose Cannon
Grenade Launcher1 Loch-n-Load Loose Cannon
Stickybombs Stickybomb Launcher Scottish Resistance Sticky Jumper
Stickybomb Launcher1 Scottish Resistance Sticky Jumper2
Exploding flares Detonator Scorch Shot
Detonator2 Scorch Shot2
Environment Pumpkinbomb.png
Pumpkin bombs
Notes

1Includes Festive, Botkiller and Australium variants.

2Knockback only affects the user.

Damage over time / Self damage

Damage received from an adirectional source or a weapon that hurts the user will push the recipient upward. The degree of knockback experienced scales with the damage taken and is usually minor, but can be significant enough to access previously unreachable areas.

Damage over time / Self damage sources
Bleeding Flying Guillotine Boston Basher Three-Rune Blade Wrap Assassin Southern Hospitality Tribalman's Shiv
Flying Guillotine Boston Basher Three-Rune Blade Wrap Assassin Southern Hospitality Tribalman's Shiv
Fire Cow Mangler 5000 Flame Thrower Backburner Degreaser Phlogistinator Rainblower Flare Gun Detonator
Cow Mangler 50001 Flame Thrower2 Backburner Degreaser Phlogistinator Rainblower Flare Gun2 Detonator
Manmelter Scorch Shot Sharpened Volcano Fragment Huo-Long Heater Huntsman Fortified Compound
Manmelter Scorch Shot Sharpened Volcano Fragment Huo-Long Heater3 Huntsman2,4 Fortified Compound2,4
Notes

1Charge shot only.

2Includes Festive, Botkiller and Australium variants.

3Flame ring only.

4Flaming arrows only.

Special cases

  • Compression blast – Launches victim backwards aerially without inflicting damage.
  • Force-A-Nature – Launches victim according to the angle at which the weapon was fired; launches an airborne wielder in the opposite direction.
  • Loose Cannon – Launches victim back a distance proportional to how far the cannonball travels upon a direct hit.
  • Melee weapon Critical hits – Launches airborne targets significantly backwards.
  • Natascha – The effects of slowdown are similar to knockback and will cancel any animations the victim is in.
  • Scorch Shot – Launches victim back a distance proportional to how far the flare travels.
  • Sentry Gun – Sentry Gun bullets and rockets push targets away.

Related achievements

Leaderboard class scout.png Scout

Fall Classic
Fall Classic
Cause an environmental death or suicide using the Force-A-Nature's knockback.


Leaderboard class demoman.png Demoman

He Who Celt It
He Who Celt It
Use the Sticky Launcher to kill an enemy player via environmental damage.


Backpack Full Head Of Steam.png Foundry achievements

Terminated, Too
Terminated, Too
Kill a player by pushing them into the cauldron fire.


Doomsday icon.png Astro-chievements

Lift-offed
Lift-offed
Push a player into the rocket's exhaust path at the end of the round.


Item icon Spellbook Magazine.png Bereavements/Hellchievements

Helltower: Mine Games
Helltower: Mine Games
Perform 17 environmental kills in Hell


Carnival of Carnage RED Bumper Car.png Merasmachievements

Carnival Of Carnage: Bumper Crop
Carnival Of Carnage: Bumper Crop
Kill 30 enemies by bumping their bumper cars off the tracks.


See also