Stone Wall & Black #1524
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

 More Textures
Retro Squares Background [email protected] #796
 Noise  CC 0

Retro Squares Background 8

Source GDJ

Dungeons & Flagons 1 #1417
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Dark Wood #320
 Wood  CC BY-SA 3.0

A beautiful dark wood pattern, superbly tiled.

Source Omar Alvarado

Prismatic Chevrons Pattern 5 With Background #469
 Dark  CC 0

Prismatic Chevrons Pattern 5 With Background

Source GDJ

White [email protected] #640
 Fabric  CC BY-SA 3.0

I took the liberty of using Dmitry’s pattern and made a version without perforation.

Source Atle Mo

Redox [email protected] #852
 Light  CC BY-SA 3.0

After 1 comes 2, same but different. You get the idea.

Source Hendrik Lammers

Glossy Groove Stripe Pattern (Pale Orange) #967
 Stripes  CC BY-SA 3.0

A pale orange background pattern with glossy groove stripes.

Source V. Hartikainen

Cream Dust #980
 Light  CC BY-SA 3.0

I love cream! 50x50px and lovely in all the good ways.

Source Thomas Myrman

Olive Green Web Background Image #1335
 Green  CC BY-SA 3.0

Seamless Olive Green Web Background Image

Source V. Hartikainen

Decorative divider 251 #2069
 Dark  CC 0

Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.

Source Firkin

Light Grey Floral [email protected] #345
 Wall  CC BY-SA 3.0

Lovely light gray floral motif with some subtle shades.

Source GraphicsWall

Background pattern 9 (B&W) #212
 Dark  CC 0

Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net

Source Firkin

Fruit on a branch #1969
 Dark  CC 0

From a drawing in 'Line and form', Walter Crane, 1914.

Source Firkin

Triangular Psychosis 4 #236
 Noise  CC 0

A colorful triangular background, variation 4.

Source GDJ

Subtle [email protected] #922
 Light  CC BY-SA 3.0

As simple and subtle as it gets. But sometimes that’s just what you want.

Source Designova

Mocha [email protected] #1100
 Gray  CC BY-SA 3.0

You don’t see many mid-tone patterns here, but this one is nice.

Source Joel Klein

Decorative divider 280 #1875
 Blue  CC 0

From a drawing in 'Artists and Arabs', Henry Blackburn, 1868

Source Firkin

Cincinnati tablet 2 #2146
 Dark  CC 0

Remixed from a drawing in 'Prehistoric Man: researches into the origin of civilisation in the old and the new world', Daniel Wilson, 1876.

Source Firkin

Iron Rusted & Dark Red #1659
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Dungeons & Flagons 6 #1422
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Bark 1 Roughness #1469
 Paper  CC 0

Bark style CC0 texture.

Source StruffelProductions

Background pattern 41 #262
 Fabric  CC 0

A seamless pattern the starting point for which was a 'light rays' rendering in Paint.net.

Source Firkin

Background pattern 268 #2066
 Dark  CC 0

Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i

Source Firkin

Desert Camo Print #255
 Fabric  CC 0

Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.

Source Eady

Leafy pattern 5 #1854
 Dark  CC 0

Remixed from a JPG that was uploaded to Pixabay by susanlu4esm

Source Firkin

Background pattern 306 (colour 5) #1879
 Colorful  CC 0

Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.

Source Firkin

[email protected] #954
 Dark  CC BY-SA 3.0

Hexagonal dark 3D pattern. What more can you ask for?

Source Norbert Levajsics

Vintage Clay Tile 3 #1460
 Unknow  CC 0

Gamedev - Roofs Textures. CC0 License.

Source Davit Masia