Decadence Colorado has revealed its full New Year's Eve lineup for 2026, and the bill is stacked with heavy hitters: Marshmello, DJ Snake, Excision, Zeds Dead, Alesso, Green Velvet and Griz headline a roster of more than 20 artists set to take over the Colorado Convention Center on December 30 and 31.
As reported by Westword, the two-night event will also feature Seven Lions, Lane 8, Kasbo, Sullivan King, Isoxo, Deathpact, Crankdat, The Resistance, Its Murph, Daniel Allan, Levity, AlleyCVT, Zingara, Gorillat and Yousuke Yukimatsu across genres ranging from bass and house to melodic dance music. The festival is produced by Global Dance alongside AEG Presents Rocky Mountains, according to the outlet's reporting.
Organizers describe the venue transformation as turning the convention center into a sprawling “Digital City,” combining multiple stages, visual production, lighting, lasers, and art installations around a dance floor that Westword reports spans the equivalent of six football fields, or nearly half a mile of space. The event has long drawn Colorado's electronic music community together with fans who travel from across the country to attend, per Westword's coverage.
From a Single Hall to a Six-Ballroom Takeover
Decadence Colorado didn't start anywhere near this size. The festival was founded in 2011 by Global Dance co-founder Ha Hau as a single-night party held in just one exhibit hall, drawing roughly 11,000 attendees in its early years, according to 303 Magazine. Hau reportedly pitched the concept as a three-year trial meant to establish Denver as a national New Year's Eve destination.
The gamble paid off. Decadence now fills six exhibit halls and runs two massive main stages, drawing between 30,000 and 40,000 attendees over its two-night run and making it the largest indoor New Year's Eve electronic music festival in North America, per ReggaeEDM.
A Convention Center Built for the Boom
Part of that growth tracks with a major venue upgrade downtown. The City and County of Denver completed a $233 million rooftop expansion of the Colorado Convention Center in December 2023, adding the 80,000-square-foot, column-free Bluebird Ballroom along with a 20,000-square-foot outdoor terrace, according to the City and County of Denver. The project, delivered through Denver's Department of Transportation and Infrastructure alongside contractor Hensel Phelps and operator ASM Global, was funded through voter-approved ballot measures and municipal certificates of participation.
City officials estimated the expansion would generate an additional $85 million in annual economic impact for Denver, underscoring how events the size of Decadence double as a tourism engine for the city's convention district. That indoor format has also proven more durable than outdoor alternatives: Global Dance, Decadence's co-producer, was forced to relocate its summer event, Global Dance Festival, from Mile High Stadium to the National Western Center in 2024 due to rising production costs and venue changes, per The Festival Voice. Hoodline covered the summer festival's return with a bass-loaded 2026 lineup back in May.
Why Denver Became the Bass Capital
Decadence's growth also reflects Denver's broader identity in the dance music world. The city earned its reputation as the nation's “Bass Capital” in large part through early dubstep pioneer Nicole Cacciavillano, who founded Submission in 2007 and launched some of the city's earliest dubstep showcases, according to Denver Westword. Cacciavillano now also owns The Black Box venue in Capitol Hill, a lineage that helps explain why bass-heavy acts like Excision, Zeds Dead and Sullivan King find such a natural home on Decadence's stages.
The Decadence brand has since spread beyond Colorado. Regional promoter Relentless Beats hosts a sister Decadence Arizona festival each New Year's Eve at Phoenix Raceway, which marked its 10th anniversary edition in late 2024, per DJ LIFE Magazine. Hoodline recently noted the Arizona event's ties to the local scene in a story about the Roosevelt bar's opening in downtown Phoenix.
Tickets, Ages and Rules to Know
Presale tickets and passes open August 24 at noon and run through August 26 at 11 a.m., with general on-sale beginning August 26 at noon, according to Westword's report. Ticket prices themselves had not yet been announced as of the lineup reveal. For those who want to spread out the cost, organizers offer a three-installment payment plan with a $15 fee, requiring 33.3 percent down at checkout followed by scheduled payments on November 15 and December 15, according to Decadence NYE's ticketing page, with that plan remaining available until mid-December subject to availability.
Entry to Decadence Colorado is restricted to those 18 and older, with separate 21-and-older ID verification checkpoints required to purchase alcohol at internal bars, per the event's official site. Attendees must present valid government-issued photo identification at the door. The festival also enforces a strict no-re-entry policy — anyone who leaves the Colorado Convention Center during the event forfeits their remaining entry privileges for the night, though the venue does provide internal amenities, including food vendors, coat check, water stations, and designated smoking areas, to keep patrons inside for the duration.
