I Gamma Ray e i Primal Fear sono stati confermati per il Wacken Open Air 2006 insieme a Orphaned Land, Aborted, Wintersun, Ektomorf, Atheist e Bloodthorn. Questo il bill provvisorio:
ABORTED
ATHEIST
BLOODTHORN
BORN FROM PAIN
CANNIBAL CORPSE
CELTIC FROST
CHILDREN OF BODOM
DIE APOKALYPTISCHEN REITER
EKTOMORF
EMPEROR
END OF GREEN
FINNTROLL
GAMMA RAY
IN EXTREMO
KORPIKLAANI
NEVERMORE
ORPHANED LAND
PRIMAL FEAR
SOILWORK
SUBWAY TO SALLY
WINTERSUN