Prismatic Polyskelion Pattern No Background
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Classic vertical lines, in all its subtlety.
Source Cody L
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning