[email protected] #846
 Gray  CC BY-SA 3.0

A mid-tone gray pattern with some cement looking texture.

Source Hendrik Lammers

 More Textures
[email protected] #722
 Fabric  CC BY-SA 3.0

Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Perforated White [email protected] #636
 Light  CC BY-SA 3.0

A bit of scratched up grayness. Always good.

Source Dmitry

Floral design 97 #1778
 Yellow  CC 0

From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.

Source Firkin

Tweed #1150
 Dark  CC BY-SA 3.0

Tweed is back in style – you heard it here first. Also, the @2X version here is great!

Source Simon Leo

Fabric pattern 2 (colour 4) #2393
 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

Rice Paper #338
 Paper  CC BY-SA 3.0

Scanned some rice paper and tiled it up for you. Enjoy.

Source Atle Mo

Floors & Yellow #1609
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

School #1318
 Yellow  CC BY-SA 3.0

Spice up your next school project with this icon background.

Source Swetha

Decorative divider 286 #1824
 Dark  CC 0

Remixed from a PNG that was uploaded to Pixabay by VictorianLady

Source Firkin

Background pattern 245 (colour 3) #2190
 Blue  CC 0

This was formed by distorting an image of a background on Pixabay.

Source Firkin

Background pattern 250 (colour 2) #2170
 Blue  CC 0

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

Source Firkin

Stone Wall & Yellow #1517
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Robots #125
 Dark  CC BY-SA 3.0

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

Source Seamless Studio

Background pattern 308 (colour 6) #1867
 Pink  CC 0

Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.

Source Firkin

Stone Wall & Green #1536
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

60º lines #25
 Light  CC BY-SA 3.0

Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.

Source Atle Mo

"Animal Tracks", Background Pattern #1225
 Yellow  CC BY-SA 3.0

A seamless pale yellow paper background with a pattern of animal tracks.

Source V. Hartikainen

Stone Wall & Dark #1523
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern 203 (colour 2) #2485
 Green  CC 0

A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Decorative divider #1943
 Dark  CC 0

Inspired by a drawing in 'Poems', James Smith, 1881.

Source Firkin

Background pattern 303 #1888
 Unknow  CC 0

Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous

Source Firkin

Plain & Walnut Flame #1357
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Wood Chips 2 #2100
 Unknow  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Asfault 4 #1383
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Old Mathematics #43
 Stripes  CC BY-SA 3.0

This one takes you back to math class. Classic mathematic board underlay.

Source Josh Green

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

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

Source Hendrik Lammers

Paper Blank 2 #2116
 Paper  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Stone Wall & Gray #1513
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Batthern #324
 Grid  CC BY-SA 3.0

Sometimes simple really is what you need, and this could fit you well.

Source Factorio.us Collective