To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
White circles connecting on a light gray background.
Source Mark Collins
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Polka Dots 3 No Background
Source GDJ
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin