Seamless tile 4 #1812
 Red  CC 0

Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern

Source Firkin

 More Textures
Background pattern 250 #2172
 Dark  CC 0

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

Source Firkin

Pattern & Plywood #1349
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Grunge Wall #81
 Wall  CC BY-SA 3.0

Light gray grunge wall with a nice texture overlay.

Source Adam Anlauf

Decorative divider 194 #2478
 Dark  CC 0

From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.

Source Firkin

Floral background #1975
 Colorful  CC 0

Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.

Source Firkin

Three Arrows #1668
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Floors & Yellow #1606
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Prismatic 3D Isometric Tessellation Pattern 6 #148
 Dark  CC 0

Prismatic 3D Isometric Tessellation Pattern 6

Source GDJ

First Aid Kit #701
 Fabric  CC BY-SA 3.0

No, not the band but the pattern. Simple squares in gray tones, of course.

Source Atle Mo

Block Well #1696
 Colorful  CC 0

Background Wall, Art Abstract, Block Well & CC0 texture.

Source Ractapopulous

Background pattern 260 #2094
 Orange  CC 0

Tile available in Inkscape using shift-alt-i on the selected rectangle

Source Firkin

Square ornament 38 #2147
 Dark  CC 0

From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.

Source Firkin

Wall #1241
 Stone  CC 0

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

Source Sojan Janso

Chain background #2063
 Dark  CC 0

Remixed from a drawing in 'Canadian forest industries July-December', 1915

Source Firkin

Zig-zag pattern 2 #2417
 Grid  CC 0

A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.

Source Firkin

Clover with background #237
 Paper  CC 0

Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.

Source BAJ

Mocha Grunge #1099
 Gray  CC BY-SA 3.0

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

Source Joel Klein

Large Leather #649
 Paper  CC BY-SA 3.0

More leather, and this time it’s bigger! You know, in case you need that.

Source Elemis

Prismatic Groovy Concentric Background 5 No Black #467
 Dark  CC 0

Prismatic Groovy Concentric Background 5 No Black

Source GDJ

Debut Dark #1014
 Dark  CC BY-SA 3.0

Same classic 45-degree pattern, dark version.

Source Luke McDonald

Planks & Roughcedar #1354
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Stone Wall & Gray #1509
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Climpek #775
 Grid  CC BY-SA 3.0

Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.

Source Wassim

Large [email protected] #650
 Paper  CC BY-SA 3.0

More leather, and this time it’s bigger! You know, in case you need that.

Source Elemis

Brushed Aluminum 5 #1393
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Square ornament 32 #2433
 Dark  CC 0

Drawn in Paint.net using the kaleidoscope plug-in and vectorised.

Source Firkin

Background pattern 229 #2305
 Colorful  CC 0

To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Prismatic Abstract Geometric Background 2 No Black #445
 Noise  CC 0

Prismatic Abstract Geometric Background 2 No Black

Source GDJ

Dark [email protected] #602
 Dark  CC BY-SA 3.0

The name is totally random, but hey, it sounds good.

Source Atle Mo

Background pattern [email protected] #478
 Wall  CC 0

A background pattern drawn in Inkscape.

Source Firkin