Puscifer, “Existential Reckoning: Rewired.”

While Existential Reckoning: Rewired is a remix album for Puscifer, that definition doesn’t totally capture the scale of the project. The band recruited friends to completely break down and reassemble the dozen tracks of Existential Reckoning in an entirely new way. The guest list is a who’s who of alternative and electronic artists.

The most ambitious one might be “Apocalyptical,” reworked by the Academy-Award-winning duo of Nine Inch Nails’ Trent Reznor and Atticus Ross. Clocking in a nearly 12 minutes, it’s nearly twice as long as the original. Working around a steady, pulsating rhythm, it rises and falls around that same tempo, shifting moods along the way. The song seamlessly moves from sparse to chaotic, infusing a variety of spacey sounds along the way.

Previous Puscifer collaborator Juliette Commagere takes “The Underwhelming” in a sparse, almost warlike direction. The instrumentation is spacious, but conveys a post-apocalyptic urgency. Queens of The Stone Age guitarist Troy Van Leeuwen partners with his Gone is Gone bandmate, Tony Hajjar, for “Grey Area.” It becomes a groove-heavy romp, shifting between a robotic feel to a solo that fuses blazing guitar with synths.

Tool’s Justin Chancellor and The Crystal Method’s Scott Kirkland join forces for “UPGrade,” one of the more compelling reimaginings here. The duo’s take brings the vocals to the front with a drum-and-bass instrumental, which gives the song a throwback energy. Nine Inch Nails drummer Alessandro Cortini, meanwhile, takes on a slow-burning version of “Bullet Train to Iowa.”

Electro rock duo Phantogram keep things moving with “Postulous,” an understated track with a festering energy that builds through the track. The light touch of the back beat adds to the mood, providing a foundation as urgency grows. But the record isn’t only about the guest appearances by well-known musicians. Puscifer guitarist Mat Mitchell, for example, reimagined album opener “Bread and Circus.”

Mitchell’s take turns the song on its head, trading the original’s fuzzy synths and adding a soundscape of loops and percussion, fused with a chopped-up vocal from Maynard James Keenan. At times the song is electronic, at others it feels orchestral in its arrangement.

Puscifer vocalist Carina Round adds a spacey, bass-heavy groove to “A Singularity,” one of the more organic reworkings on the album, based less in synths and electronics.

Studio drummer Sarah Jones, who played on the original Existential Reckoning, teams with Bring Me the Horizon keyboardist Jordan Fish for an energetic Eurobeat spin on “Theorem.”

Failure’s Greg Edwards, who plays with Puscifer on tour, brings a surprisingly melodic take to “Personal Prometheus.” The track covers a lot of ground, from earthy and acoustic to a bass-heavy dirge with a crescendo of harmonized vocals. It’s unpredictable, sometimes chaotic and takes the emotion of the song in different direction.

Touring musician Gunnar Olsen adds a decidedly alternative spin on “Fake Affront,” the instrumental here sounding a little like Metric, with Keenan’s vocals at the forefront.

“Bedlamite” closes out the record, reimagined by BBC 1 radio DJ (and former member of Hexes and Bloodhound Gang) Daniel P Carter, bringing a straight-ahead hard rock feeling to the track, transforming the track with ’90s alt-rock guitar lines and driving drumming in place of the moody, spacious vibe of the original.

Follow writer Mike DeWald at Twitter.com/mike_dewald.