Floors & Dark Stone #1594
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

 More Textures
Light Aluminum #304
 Wall  CC BY-SA 3.0

Used correctly, this could be nice. Used in a bad way, all hell will break loose.

Source Atle Mo

Retro Circles Background 5 No Black #426
 Noise  CC 0

Retro Circles Background 5 No Black

Source GDJ

One in a Million #1346
 Gray  CC BY-SA 3.0

Nicely executed tiling for an interesting pattern.

Source Ignasi Àvila Padró

Background pattern 231 #2301
 Dark  CC 0

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

Source Firkin

Autumn leaves pattern #2468
 Brown  CC 0

A seamless pattern formed from leaves.

Source Firkin

Rubber [email protected] #102
 Dark  CC BY-SA 3.0

A very slick dark rubber grip pattern, sort of like the grip on a camera.

Source Sinisha

Embossed Paper #731
 Paper  CC BY-SA 3.0

One more from Badhon, sharp horizontal lines making an embossed paper feeling.

Source Badhon Ebrahim

Brushed Aluminum 7 #1395
 Dark  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Ocean decorative divider #1904
 Dark  CC 0

Vector version of a png that was uploaded to Pixabay by pencilparker

Source Firkin

Stone Wall & Yellow #1551
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Tile-able Wall Texture (Light Orange Brown) #1051
 Stone  CC BY-SA 3.0

A seamless texture of an abstract wall colored in shades of light orange brown.

Source V. Hartikainen

"Light Green Wall", Repeatable Texture #1190
 Concrete  CC BY-SA 3.0

Here's a repeatable texture that resembles a light green concrete wall or something similar.

Source V. Hartikainen

Background pattern 234 (colour 2) #2258
 Green  CC 0

Drawn in Paint.net and vectorised in Vector Magic.

Source Firkin

Tessellation 16 (colour 5) #2211
 Yellow  CC 0

The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.

Source Firkin

Fabric pattern 2 (colour 5) #2392
 Fabric  CC 0

Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Mix & Red Pattern #1630
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Stone Wall & Red #1505
 Red  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Page ornament #1990
 Dark  CC 0

Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.

Source Firkin

leaf seamless pattern #2262
 Blue  CC 0

The image depicts a tiled seamless pattern.The tile represents four leaves aligned every 90 ° , which may look like a bird or a dragon .The original leaf design is from a Japanese old book.

Source Yamachem

Moss #1290
 Wall  CC 0

ZeroCC tileable moss texture, photographed and made by me. CC0

Source Sojan Janso

Green Background Pattern with Warped Vertical Stripes #968
 Stripes  CC BY-SA 3.0

A green background pattern with warped vertical stripes and a grunge look.

Source V. Hartikainen

Pewter & Gray #1637
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Asfault 7 #1386
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Stone Wall & Yellow #1574
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Stone Wall & Yellow Glod #1586
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Psychedelic #745
 Gray  CC BY-SA 3.0

Geometric triangles seem to be quite hot these days.

Source Pixeden

Background pattern 315 (colour 3) #1843
 Green  CC 0

The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Prismatic Curved Diamond Pattern 7 No [email protected] #548
 Noise  CC 0

Prismatic Curved Diamond Pattern 7 No Background

Source GDJ