Metal Grid Pattern #1091
 Metal  CC BY-SA 3.0

A repeatable image with dark background and metal grid pattern.

Source V. Hartikainen

 More Textures
Robots #125
 Dark  CC BY-SA 3.0

And some more testing, this time with Seamless Studio. It’s Robots FFS!

Source Seamless Studio

cloth texture 02 #2449
 Fabric  CC 0

This is a dark-red seamless cloth texture.

Source Yamachem

Decorative divider 272 (colour) #1926
 Yellow  CC 0

Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.

Source Firkin

Banner pack 6 #2438
 Colorful  CC 0

Three coloured banners. From an image on Pixabay.

Source Firkin

Soft [email protected] #319
 Dark  CC BY-SA 3.0

Pattern #100! A black classic knit-looking pattern.

Source Factorio.us Collective

Wood 5 #1448
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Prismatic Curved Diamond Pattern 8 No Background #549
 Dark  CC 0

Prismatic Curved Diamond Pattern 8 No Background

Source GDJ

Faded Yellow Stripes, Background Pattern #933
 Stripes  CC BY-SA 3.0

A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.

Source V. Hartikainen

Green & Ivy #1365
 Green  CC 0

Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!

Source Linolafett

Decorative divider 282 #1857
 Dark  CC 0

From a drawing in 'In an Enchanted Island', William Mallock, 1892.

Source Firkin

Vintage Clay Tile 2 #1459
 Unknow  CC 0

Gamedev - Roofs Textures. CC0 License.

Source Davit Masia

Background pattern 235 (colour 4) #2252
 Green  CC 0

To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Tessellation 14 variant 1 #2530
 Grid  CC 0

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

Background pattern 257 #2137
 Dark  CC 0

Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Nami #575
 Dark  CC BY-SA 3.0

Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!

Source Dertig Media

Seamless wool texture #1705
 Noise  CC 0

Made from an image on Pixabay

Source Firkin

"Dark Wood", Free Web Background #872
 Wood  CC BY-SA 3.0

Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!

Source V. Hartikainen

Concretia 4 #1411
 Dark  CC 0

Gamedev - Concrete Textures. CC0 License.

Source Davit Masia

Plywood Web Background #871
 Wood  CC BY-SA 3.0

Plywood Web Background background image for use in web design.

Source V. Hartikainen

Wavy background #2012
 Green  CC 0

A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic

Source Firkin

"Grunge-Like" Background Pattern #1126
 Grunge  CC BY-SA 3.0

Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.

Source V. Hartikainen

shell pattern #2533
 Brown  CC 0

The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.

Source Yamachem

Knitted Sweater #1097
 Light  CC BY-SA 3.0

Can never have too many knitting patterns, especially as nice as this.

Source Victoria Spahn

Background pattern 19 (outline) #204
 Light  CC 0

A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.

Source Firkin

Black Wall #1262
 Wall  CC 0

Zerro CC tillable texture of stones photographed and made by me. CC0

Source Sojan Janso

[email protected] #279
 Paper  CC BY-SA 3.0

A good starting point for a cardboard pattern. This would work well in a variety of colors.

Source Atle Mo

Grunge Website Background #1122
 Grunge  CC BY-SA 3.0

A seamlessly tile-able grunge background image.

Source V. Hartikainen

Stone Wall & Yellow #1527
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Decorative divider 219 #2231
 Dark  CC 0

Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.

Source Firkin