Template:Unusual effects

The first 14 effects were added to the game with the Mann-Conomy Update, 8 more unusual effects were added with the August 18, 2011 Patch, and 7 additional effects were added with the June 19, 2013 Patch. The unusual effect pool used by any given series of crate is listed in its potential uncrate results list.
The first 14 effects can be obtained from any crate of Series #1 to Series #25.

Unusual Chieftain's Challenge normal burning fire effect.png

Burning Flames
Unusual Heart Effect.png

Circling Heart
Unusual Peace.png

Circling Peace Sign
Unusual tf2logo.png

Circling TF Logo
Green Confetti
Unusual green energy glow.png

Green Energy
Unusual Ghost.png

Haunted Ghosts
Unusual Flies.png

Massed Flies
Unusual purple Confetti.png

Purple Confetti
Unusual purple energy.png

Purple Energy
Unusual Green Flame Effect.png

Scorching Flames
Unusual plasma effect 2.png

Searing Plasma
Unusual sunbeam.png

Sunbeams
Vivid Plasma.png

Vivid Plasma

The next 8 effects can be obtained from any crate of Series #26 to Series #57.

Blizzardy Storm
Bubbling
Nuts n' Bolts
Orbiting Fire
Orbiting Planets
Smoking
Steaming
Stormy Storm

The final 7 effects can be obtained from any Series #59 crate onwards.

Aces High (RED)
Aces High (BLU)
Cloud 9
Dead Presidents
Disco Beat Down
Kill-a-Watt
Miami Nights
Terror-Watt

There were 4 more Halloween-only effects added with the Very Scary Halloween Special, 5 with the Spectral Halloween Special, 8 with Scream Fortress V, and 6 with Scream Fortress VI. Additionally, 2 Halloween-only taunt effects were added in with Scream Fortress 2014. Unlike other effects, these can only be obtained during Halloween season, from any openable crate. The first 4 Halloween-only effects, introduced in the Very Scary Halloween Special.

Unusual Green Bubbles.png

Cauldron Bubbles
Unusual Cloudy Full Moon.png

Cloudy Moon
Unusual Orbiting Dark Fire.png

Eerie Orbiting Fire
Unusual Orbiting Jack O' Lantern.png

Flaming Lantern

The next 5 Halloween-only effects, introduced in the Spectral Halloween Special.

Cloudy green.PNG

Harvest Moon
Cloud skull.PNG

It's A Secret To Everybody
Cloudy knives.PNG

Knifestorm
Misty skull.PNG

Misty Skull
Purple cloud skull.PNG

Stormy 13th Hour

The next 8 Halloween-only effects, introduced in Scream Fortress 2013.

Unusual arcana.png

Arcana
Unusual chiropteraveneta.png

Chiroptera Venenata
Unusual darkblaze.png

Darkblaze
Unusual demonflame.png

Demonflame
Unusual hellfire.png

Hellfire
Unusual poisonedshadows.png

Poisoned Shadows
Unusual somethingburningthiswaycomes.png

Something Burning This Way Comes
Unusual spellbound.png

Spellbound

The final 6 Halloween-only effects, introduced in Scream Fortress 2014.

Amaranthine
Bonzo The All-Gnawing
Ghastly Ghosts Jr
Haunted Phantasm Jr
Stare From Beyond
Unusual Ooze.png

The Ooze

The 2 Halloween-only taunt effects, introduced in Scream Fortress 2014.

Ghastly Ghosts
Haunted Phantasm

Robotic Boogaloo

The Robotic Boogaloo Update added 10 Community-created unusual effects. Items with these effects can only be obtained by unlocking the RoboCrate.

Anti-Freeze
Electrostatic
Green Black Hole
Memory Leak
Overclocked
Phosphorous
Power Surge
Roboactive
Sulphurous
Time Warp

Love & War

The Love & War Update added 8 unusual taunt effects.

Unusual Taunt '72.png

'72
Unusual Taunt Fountain of Delight.png

Fountain of Delight
Unusual Taunt Holy Grail.png

Holy Grail
Unusual Taunt Mega Strike.png

Mega Strike
Unusual Taunt Midnight Whirlwind.png

Midnight Whirlwind
Unusual Taunt Screaming Tiger.png

Screaming Tiger
Unusual Taunt Showstopper RED.png

Showstopper (RED)
Unusual Taunt Showstopper BLU.png

Showstopper (BLU)
Unusual Taunt Silver Cyclone.png

Silver Cyclone
Unusual Taunt Skill Gotten Gains.png

Skill Gotten Gains

End of the Line

The End of the Line Update added 4 unusual effects. Items with these effects can only be obtained by unlocking the End of the Line Community Crate.

Death at Dusk
Frostbite
Molten Mallard
Morning Glory

Gun Mettle Update

The Gun Mettle Update added 4 unusual effects exclusively for Decorated weapons. Items with these effects can only be obtained by unlocking the Powerhouse Case and Concealed Killer Case.