Cryptography through the years CTF - Level #0

Welcome to Level #0 of the Cryptography through the years CTF.

This game, like many other games, is organised in levels. Each level has access to the password of the next level. Your job is to somehow obtain that next password and level up.

NERLBHERNQLSBEPELCGBTENCUL?

Hint 1

It is a simple substitution cipher where each letter in the plaintext is replaced by another letter.

Hint 2

It shifts 13 positions.

Hint 3

It is a ROT13.