Just like the black maze, only in light gray. Duh.
Source Peax
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
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 one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen