This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
A version without colours blended together to give a different look.
Source Firkin
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Prismatic Polka Dots 3 No Background
Source GDJ
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel