First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a vector adapted from a jpg on Pixabay. The tile this is constructed from can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
Zero CC tileable hard cover green book, scanned and made by me. CC0
Source Sojan Janso
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Prismatic Groovy Concentric Background No Black
Source GDJ
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin