Insert for the Dungeon Universalis core box and the first expansion New Challenges, sleeved with medium grade sleeves (Sleeve Kings).
I'm using the expansion box to store all the manuals, DM screen, and such. It's a 2 floor insert (like the original one) that also holds the Bestiary Cards.
Sizes are in CM, so the slicer may ask you to auto-resize, just accept the prompt.
Created with my insert generator using Blender's Geometry Nodes, available in https://github.com/soy1bonus/BoardGameInserts
The author marked this model as their own original creation.