The encounter opens Monday, October 12 at 12:00 UTC. In its official preview, Jagex says Lady Ghrazi and Lord Ghrazi enter together, with separate attacks and mechanics.

A partner is mandatory at launch.

Early challengers get no practice setting. The only available difficulty starts at 2000% Enrage, and lower options stay locked until one duo secures the first kill. After the race, normal mode at 0% plus 100%, 500%, and 1000% become available. Jagex plans to add 4000% later.

Story encounters will not provide a complete rehearsal. The studio says the full boss mechanics differ from the knights' appearances during Havenhythe. The winning pair receives a one-of-a-kind World First title and concept art signed by the RuneScape team.

Solo mode follows in November. Until then, the fight is built around coordinating two players against both leaders. Jagex has not set a specific date for the solo version, so players who prefer fighting alone will need to wait beyond the initial release.

The reward pool includes Legendary Crossbows at Tier 95, a Codex for the Invoke Arisen Flesh Necromancy incantation, and a Lady Ghrazi boss pet. Completing the collection log grants another title, while additional titles reward higher Enrage milestones. That leaves progression targets once the opening race is settled.

RuneScape is free to play on Steam, with English, French, German, and Brazilian Portuguese listed. Before the encounter opens, Jagex recommends finishing the Havenhythe storyline, choosing a partner, and sorting out gear and supplies. The event date is also listed on the RuneScape page.