If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Abstract Ellipses Background Grayscale
Source GDJ
It looks very nice I think.
Source V. Hartikainen
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin