Rochester, New York's Kalibas have been a shape-shifting force in extreme metal since 2003, starting as a brutal death/grindcore act before incorporating black metal into their arsenal. Over twenty years they've grown into something genuinely hard to classify, which is precisely their appeal.

Oxnard, California's Kermz specialize in the most physically punishing end of the death metal spectrum — slam-heavy and brutal, with song structures built to maximize impact and bodily devastation since 2014.

Also hailing from New York, Kevorkianesque take the brutal death metal template and push it to its logical extremes — relentless, pulverizing, and technically accomplished in the service of maximum punishment since 2016.

Seattle's Kryptoxik Mortality formed in 2023 with a focused mandate: to deliver slam and brutal death metal at maximum density. Their approach is blunt and physical, built on the cavernous low-end and percussive slam breakdowns the genre demands from its practitioners.

Erupting out of Everett, Washington in 2024, Kyphosis fuse brutal death metal and grindcore with jarring industrial textures — a collision of brute force and mechanical hostility that feels genuinely new even by extreme metal standards.