LEGO 10450 Duplo - Hopsy's Castle Game (Intro Book) Building Instructions

LEGO 10450 Duplo - Hopsy's Castle Game (Intro Book) is a 2025 LEGO DUPLO set focused on the castle build. The details table below lists 47 pieces, along with the set number, theme and year.

About this LEGO instruction page

Watch the step-by-step LEGO instructions video for LEGO 10450 Duplo - Hopsy's Castle Game (Intro Book). You can pause between steps, follow the build order, and use the related instruction links below to find more sets from the same theme.