For ζ4 (ROT13):
Fgneg ol ercynpvat bar bs gur abqrf va gur pyvdhr jvgu n arjyl-perngrq bar. Gura rkgraq gung gb gur fbyhgvba.
Ok I got it. V guvax gur grez "n" pna or irel qrprcgvir va gur frafr gung gur fbyhgvba V sbhaq ercynprf Nyvprf abqr jvgu gjb arjyl perngrq abqrf, jurer ol vzcylvat fvathyne, ercynpvat n abqr jvgu n abqr gung freirf gur fnzr cbecbhfr nf gur byq bar jbhyq whfg znxr zr guvax "Jryy jung gur urpx urpx vf gung fhccbfrq gb qb!?".
Also, not entirely related to the puzzle, but I absolutely hate my ignorance to noticing the game creator in the comments.