Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
This is a remix of "geometrical pattern 01".
Source Yamachem
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Prismatic Polyskelion Pattern No Background
Source GDJ
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Prismatic Abstract Background Design No Black
Source GDJ
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers