[1] The group started writing original songs in April 2011 with the addition of rhythm guitarist Nick Casasanto.

[8] In February 2014 Bad Timing and Hopeless[9] released a split EP that featured two songs each from Knuckle Puck and Neck Deep.

[1] Between May and June, the band supported Man Overboard on the group's The Heart Attack Tour alongside Transit, and Forever Came Calling.

[16] Knuckle Puck supported Senses Fail on the band's Let It Enfold You 10th anniversary tour from late August till early October 2014.

[26] In November 2014, the various artists compilation album Punk Goes Pop 6 was released, it featured Knuckle Puck covering The 1975 song "Chocolate".

[19] In late February, the band announced it had started recording its debut album[29] and by early April, the group had finished.

[47] In December 2021, the band headlined a tour celebrating their tenth anniversary with Arm's Length, Carly Cosgrove, and Snow Ellet.

On December 1, 2021, the band released a single "Levitate" and announced a US and European tour from March 2022 to June 2022 with co-headliner Hot Mulligan with support by Meet Me at the Altar and Anxious during the US shows.

On October 20, 2022, the band announced that they had signed with Pure Noise Records and released a new single titled "Groundhog Day".

[49] The band later announced a compilation vinyl release Retrospective consisting of their first two EP's and their split with Neck Deep.

[50] On August 8, 2023, Knuckle Puck released a cover of Third Eye Blind's song "Losing a Whole Year" as part of Pure Noise Records's compilation album Dead Formats Vol.2.

In 2024 they announced they'd be playing a string of headline shows in the United Kingdom ahead of their opening slow for Neck Deep at Alexandra Palace, affectionately known as Ally Pally.

On July 10, 2024, Knuckle Puck released a cover of Noah Kahan's song "Stick Season" as part of Pure Noise Records's compilation album Dead Formats Vol.3.

On October 24, 2024, the band released a new song entitled "On All Cylinders", a couple weeks before their tour with State Champs, Meet Me at the Altar, and Daisy Grenade started on November 8, 2024.

Knuckle Puck sound has been described by AllMusic biographer James Christopher Monger as a "melodic blend of old-school punk rock and emo", compared to the likes of The Wonder Years, The Story So Far, and Rise Against.

[53][54][52] AllMusic reviewer Timothy Monger noted the album's sound "ranging from blazing, epic emo and pop-punk to slower, more contemplative fare.

"[52] Cleveland.com reviewer Troy L. Smith noted that people who liked early 2000s pop punk albums such as Simple Plan's No Pads, No Helmets...Just Balls (2002) and New Found Glory's Sticks and Stones (2002) would enjoy Copacetic.

[55] Rumchaks plays guitar and sings vocals in Oak Lawn, Illinois-based band Homesafe, alongside vocalist/bassist Tyler Albertson and drummer Emmanuel Duran.

Joe Taylor and Rumchaks joined with former Real Friends' vocalist Dan Lambton to form Rationale.

[60] Knuckle Puck was nominated for Album of the Year and Best Breakthrough Band in the 2016 Alternative Press Music Awards.