Watch the Runescape trailer introducing the first Runescape battle pass. Runescape Hero Pass: Underworld is undead-themed and includes free rewards for players, as well as additional rewards for Premier Membership subscribers. From new pets, weapons, and armor to tool and ability overrides, here's a look at what's included. Each Runescape Hero Pass season will feature 120 levels of content, split into 99 standard levels and 21 challenging heroic levels.