This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Classic vertical lines, in all its subtlety.
Source Cody L