Short answer: Scooby-Doo and the rest of the Mystery Inc. gang are scheduled to appear in Fortnite as part of Fortnitemares 2025, with staggered drops starting around mid-October 2025. The early Scooby Doo siblings (Scooby-Doo and Shaggy) are planned for release on October 11, 2025, followed by Velma, Daphne, and Fred on October 18, 2025, with additional Scooby-related items and Mystery Machine content released in the surrounding days. The event runs from early October 2025 through mid to late October, aligned with the Fortnitemares Halloween celebration.