Aside from Slipknot, Knotfest has featured a diverse alumni of past performers including Deftones, Marilyn Manson, Lamb of God, Bring Me the Horizon, Prong, Deadly Apples, In This Moment, Amen, Butcher Babies and Prayers.
Among the activities, the festival offered as part of its "dark carnival experience" were circus big-top tents, pillars of fire, amusement park rides, burlesque performers, firebreathers, stilt walkers, drum circles made of junkyard cars and graffiti walls.
Knock Out Monkey Make My Day Silhouette from the Skylit Sepultura The Faceless Rings of Saturn Khaotika Motorbreath Judas Priest Korn Mastodon Trivium Corrosion of Conformity Body Count At the Gates Red Fang Battlecross Gwar Born of Osiris Earth Crisis Goatwhore Kataklysm Belphegor Inquisition Abysmal Dawn Her Name in Blood Khaotika Fire from the Gods Buried Under Texas Doomsday Mourning Born for War A Tragedy at Hand Grand Lord High Master Piece in Terror Short Fuse Green as Emerald Kaustik Skyburial This Place Is a Zoo Chasing the Bullet Street Drum Corps Slipknot Bring Me the Horizon Clutch Ghostface Killah Mobb Deep Suicidal Tendencies All That Remains Beartooth Kyng Cannibal Corpse Helmet Snot Devour the Day Dying Fetus Disgorge Internal Bleeding Green Death The ReAktion Kings of Carnage I, of Helix Proletariat Avoid the Void Abhor A Threat to the Enemy Stands with Fists Paranova Everybody Panic!
As Oceans Dead Animal Assembly Plant Speaking with Ghost Xero for Life The Darkest Day Street Drum Corps Slipknot Megadeth Lamb of God
A Day to Remember Trivium Atreyu Asking Alexandria Tanus Cradle of Filth Ill Niño The Dillinger Escape Plan Brujeria Resorte 36 Crazyfists Here Comes the Kraken Everyone Likes Cathleen Armored Saint Metal Church Exmortus Thrown into Exile Black Sabbath Disturbed Megadeth Opeth Black Label Society Rival Sons Suicidal Tendencies DevilDriver Huntress Hatebreed Goatwhore Allegaeon Municipal Waste Brujeria Kataklysm The Shrine Still Rebel Slipknot Slayer Amon Amarth Anthrax Trivium Motionless in White Sabaton Suicide Silence Butcher Babies Overkill Emmure Man with a Mission Whitechapel Combichrist Carnifex Loathe SiM
魔法少女になり隊 彼女 in the Display Salty Dog A Perfect Circle Korn Stone Sour Bullet for My Valentine Cannibal Corpse Ill Niño Maximum the Hormone Deadly Apples Cerberus Anthrax Children of Bodom Hatebreed Suicide Silence
Parazit Monster Magnet Brant Bjork Sasquatch Lo-Pain Ozzy Osbourne Prophets of Rage Deftones Children of Bodom Orange Goblin Kreator Baroness High on Fire Iron Reagan 1349 Havok Tombs Night Demon Thrown into Exile Municipal Waste Possessed Kataklysm Suffocation Rings of Saturn Rob Zombie Marilyn Manson Stone Sour Eighteen Visions Prayers[13] Testament The Black Dahlia Murder Code Orange Stitched Up Heart Goatwhore Life of Agony Upon a Burning Body Death Angel Oni Ded Sid Wilson of Slipknot Repulsion Exhumed Warbringer Ghoul Zombie Eating Horse Judas Priest Helloween Kreator Arch Enemy Masacre Iron Reagan Revocation Goatwhore Kilcrops Under Threat Cuentos de los Hermanos Grind Pitbull Canceled due to lack of organization.
Asterism Ailiph Doepa Wagamama Rakia Slipknot Korn Maximum the Hormone Parkway Drive Coldrain Noisemaker Fear, and Loathing in Las Vegas Petit Brabancon Paledusk