Flatline Fest 2026
Curated by Sarah Pagel · Last verified 28 February 2026
About this festival
Flatline Fest is a two-day extreme metal music festival held at the Oriental Theater in Denver, Colorado. What makes it unique is that it is curated by a local metal producer, Dave Otero, and showcases a blend of international and local bands he has collaborated with.
What this festival offers
Don't lose your ears at Flatline Fest
The sound system will be unforgiving. Loop lets you hear every detail at a safe volume — no ringing on the train home.
Where you'll be
Loading map...
The Oriental Theater
4335 W 44th Ave., Denver, CO 80212
Local Currency: USD
Consider paying in USD locally. Bring cash or use a payment card that supports this currency to avoid extra fees.
Find Accommodation
Book your stay near Flatline Fest
An independent electronic music & festival researcher with 10+ years in the global dance scene.
Last verified 28 February 2026
