Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Sharp pixel pattern, just like the good old days.
Source Paridhi
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
"Beige Stone", Tileable Texture.
Source V. Hartikainen
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
This white background pattern has a seamless grunge style texture. Here's a white grunge style background pattern. Use it as a tiled background image on web sites or for other purposes.
Source V. Hartikainen
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran