The Urban Decay tileset for RPG Maker will give you plenty of broken-down, scratched-up, bombed-out tiles to help you expand your modern stories.
The Urban Decay Tileset Includes:
Ground tiles: Water, green/toxic water, grass, sand, concrete, asphalt, dirt, stone, several green ground covers for variety, fences, broken ground, wildflowers and more! Also includes plenty of road stripes.
Walls/roofs: Tons of wall types in stucco, log cabin, metal building, wood planks, stone of lots of kinds. 10+ wall types (not including color variations). You also get clay tile roof, wood plank roof, metal, three types of shingles, and 10 types of walkable roofs. All have dirty, rough edges to blend in with the decayed environment.
Shingle and metal roofs include shadow side tiles. Also includes peaked roof tiles you can overlay to bring a lot more variety to your roofing.
Wall tiles also include variable-width windows in multiple colors.
Make lots of roads:
signage (with broken and half-buried signs)
road stripes (faded)
traffic lights (with broken versions)
manhole covers and other details
guard rails (some bent)
barricades (also broken)
Neighborhood tiles now featuring dirt, grime, cracks and general brokenness: