ProDesign3D
very good
Simple Sci-fi tower/skyskraper building
Can be used for concepting, background, matte painting, look development ,can be tweaked and readjusted to game ready or for printing etc..
please note that this is not a game ready model , but a low poly concept mesh , means that you might not find clean geo/uvs but you can turn it into a game ready, retopo it etc..
Images Rendered with Redshift