Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2816125.

Playing around with some different floor treatments for the openlock floor sections. A lot of the tile I see out there are for dungeons, and caves, and the like. Which makes sense. But what if you want to do a fancier prison? or a manor home, or a King's castle interior. These tiles might spruce it up a bit.

I have been adding a few more patterns. Two are expanding on the theme of the first one, but expanding to cover four tiles at once. A bigger pattern. The other one is Star type pattern.

Updated to include a "knotwork" style tile.
Updated to add a couple of shots of Painted tiles, just for fun. My painting skills are weak.