Matthew Wilkson : guitar, vocals
Marcos Smith : guitar, vocals, percussion
Marfred Rodriguez-Lopez : bass, vocals
Marcel Rodriguez-Lopez : drums, keyboards, percussion, sequences, vocals

Matt Embree : vocals on Everlasting Beacon of Light
Sunnie Baker : vocals on Everlasting Beacon of Light and The Heat, The Drought, The Thirst, and The Insanity

All music and lyrics written by Zechs Marquise
P 2011 Eureka the Butcher (SESAC), Blackagar Boltagon (SESAC), COS Compositions (SESAC), Cryptoparticulo Publishing Co. (SESAC)

Vocal melodies on Everlasting Beacon of Light by Zechs Marquise and Matt Embree
Vocal Melodies on The Heat, The Drought, The Thirst, and The Insanity by Zechs Marquise and Sunnie Baker
Recorded at Eureka's Castle and Castle Grayskull in El Paso, Texas

Produced and Engineered by Marcel Rodriguez-Lopez
Mixed by Lars Stalfors
Mastered by Heba Kadry at The Lodge

Artwork by Zeque Peña
Layout by Sonny Kay
Management - Sargent House