A ton of amazing high-quality walls, murals, and floors.Club Crimsyn
Lots of walls, floors, furniture, and skins as well.Fiddledeedee
A collection of walls and floors from Half-Life 2. Also lots of clutter.My-Mashup.net/
Gorgeous walls and floors that would be fitting to a grungy neighborhood.Adele Sims
Amazing build sets and walls, well, pretty much everything is amazing here.Esperesa
Yuxi is an amazing creator...Wonderful floor and wall sets and clutter.Kunoichikatie
Kunoichikatie creates tons of amazing grungy walls and recolors.Azaya
Azaya creates tons of recolors for Maxis and other meshes. Delightfully derelict!X-Inertia
Loads of Maxis grungry recolors...LOVE.Niaolong
Seriously...THIS IS NECESSARY. Maxis Grunge Overload!
8 Deadly Sims
Lots of grungy Maxis options, walls, floors, etc.Cyclone Sue
Creator of all kinds of industrial decor and build sets.Living Dead Girl
Lots of fantastic wall clutter that I overuse in my lots.Pixel Hate
Creator of walls, floors, overlays, and lots.Guatla
Some of my favorite sets...Broken bathroom, broken kitchen, and the demolition set.Purity Project
Kind of Fallout 3 esque, lots of options for grungifying homes.Six Bullets
Created some nice rusty playground recolors for those of you with Apartment Life.Psychosim
A must visit site for all your grungy default needs...Also very useful neighborhood decor.
WG's Grungy Items
Just found these items at Insimenator!CuriousB
Tons of grungy items...Constantly updating too!Blacky Sim Panther
You have to have a membership, but they have a great collection of grungy recolors, lots, and objects.Currantpotpie
This is my personal journal, but I'm also uploading recolors in the grunge persuasion. Stay tuned...Javiera
Or you can just call her 'Ja'. Creator of MANY grungy recolors. This is one of my favorite creators!
TO BE CONTINUED, as always. UPDATED 11/20/10.