999 card game box insert (Saboteur, Take 5, etc.)

I wanted to get back into CAD and 3D printing so I thought to start with something fairly simple that solves a problem you didn't even know you have. After 3 iterations I can finally present something that works.

If you want to model something similar yourself, I will share the dimensions and based on the pictures, you can decide if you want to make it higher/thicker/rounder/etc. Additionally I am adding FreeCAD files that you can download and edit.

Dimensions:

Length = 116 mm
Width = 89 mm
Height = 17.6 mm
Wall thickness = 0.6 mm (1 mm already makes the cards hardly fit)
Middle separator thickness = 1 mm
Fillet radius = 4 mm (wherever you see fillets)