Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Abstract Tiled Background Extended 11
Source GDJ
CC0 and seamless wellington boot pattern.
Source SliverKnight
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Embossed lines and squares with subtle highlights.
Source Alex Parker
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Same classic 45-degree pattern, dark version.
Source Luke McDonald
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Inspired by this, I came up with this pattern. Madness!
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
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
This one has rusty dark brown texture.
Source V. Hartikainen
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
A comeback for you: the popular Escheresque, now in black.
Source Patten
A free background pattern with abstract green tiles.
Source V. Hartikainen
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
A seamless background texture of old cardboard.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin