If you need to store a single Keyforge deck in a simple but sturdy box, give this one a try. Fits a sleeved deck (I use Dragon Shields, but it shouldn't really matter).
I've included a blank box along with engraved versions for most of the houses. Untamed and Dis logos need some extra vector work to look good, so I'll include them later.
The lid is designed to be printed in flexible material - TPU or semi flex. There's no tolerance added to it, so consider scaling it up just a little bit if you're not sure your printer is accurate enough with extrusion widths.