This hotel interior is made of modular units that can be rearranged and snap together like Legos to make all sorts of different structures, rather than modeling a floor fully and texturing the entire thing.
The models were made in Blender 3D. Most of the textures are procedural, however more complicated ones with specific shapes were painted in either Adobe Animate for clean vector lines or Photoshop for quality raster images. The plug-in Knittr was used to turn the smooth cog illustration on the red carpet into pieces that will appear as carpet-like bits from the distance the player is meant to view it in the final game.