Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
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
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Abstract Ellipses Background Grayscale
Source GDJ
From a drawing in 'Picturesque New Guinea', J Lindt, 1887.
Source Firkin
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
A new one called white wall, not by me this time.
Source Yuji Honzawa
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen