This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Abstract Geometric Background 4
Source GDJ
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Inspired by a drawing seen in 'City of Liverpool', James Picton, 1883.
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
A rusty grunge background for websites. Feel free to use it in your site's theme.
Source V. Hartikainen
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin