I want to run a Cyberpunkish game. I was thinking maybe The Sprawl

Take multiple city maps, cut them up, then mash them together. Add evocative imagery.
Modify as needed (past this point, South Montgomery Drive becomes a private road on megacorp property).
Alternately, draw a small region, just the basic terrain (so mark/note any major hills/valleys, ponds/lakes, and streams/rivers, plus any coastlines). Alternately, grab a topographic map of your preferred region. Import to editing program, then add city region boundaries in another layer. Throw another layer on top, and use this one for roads. Most cyber punk cities will have several sections on a grid, but others will be... Odd. Use topography for the inspiration: a super steep hillside has either a road following the curvature until it can get to the bottom, or it has bridges going down to/over the valley. Probably both.
Industrial areas get weird, since stuffing factories and railroad loading docks into as small a space as possible gets you weird interruptions to the grid.
Any long term slum with no legal authority willing to enforce any regulations will get even weirder as people block roads to make compounds, blow up houses to make dirt roads, build their own things on top of each other, and turn multiple blocks into something like Kowloon.

>>54339205
>Take multiple city maps, cut them up, then mash them together. Add evocative imagery.
Don't forget to add up random big squares for arcologies. Either for the poor where their bodies are recycled after death, or little green paradises for the rich.