No, I'm with you. These pics do look like an urban Limbo. The monochromatic images, taken from Grand Theft Auto V's Los Santos, are from digital artist Kim Laughton. The collection is called "los_santos.obj," which focuses on depth and form, and removes any distinctive textures.
I like the dismal palate and two-dimensionality it casts on the architecture and personality of the city. It takes a sunny and immersive world and throws a smoggy overcast and cognitive distance between the city and the viewer. Or maybe it just looks like a 2-D sidescroller, now. Let's not get crazy.