Hello there, i just finish old turbine ready to use in-game.
Base mesh was done in Blender (model prepared for sculpting, a little bit of a hardsurface) sculpted in Zbrush (also merging shapes for hard surfaces) retopology done in Blender also UV mapping, painted in Substance Painter (albedo + metalic/roughness mask and final NRM map) final render in UE4
C&C are welcome,
cheers
more screens at
https://www.artstation.com/artwork/4bGYBW