Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Looks like an old wall. I guess that’s it then?
Source Viahorizon
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Zero CC plastic pattern texture, photographed and made by me. CC0 *Note, this texture was on the perfectly smooth surface of a plastic shovel scraper, not sure how to call it. Plz coment if you know what its called.
Source Sojan Janso
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
Prismatic Abstract Background Design
Source GDJ
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
A seamless background colored in pale orange. It has a paper like texture with diagonal grid pattern.
Source V. Hartikainen