https://itch.io/s/32830/summer-sale-2020

ShapeWorks

is an innovative and extremely beginner friendly program for effortless 3D digital sculpting. Its fluid interface enables artists to quickly give shape to there imagination. No need to go through several hoops, hassles to remember several key shortcuts and tire yourself in complex pipeline for designing your 3d model.

https://ank00.itch.io/shapeworks

Features:  

Easy 3D sculpting, touch tablet support, 

lots of alphas from skin texturing to hard surface modelling, and 

a plethora of 3D kit-bash units for readily mix and merge aircrafts, characters, guns etc 

Model optimizer tool...eliminate the need fro manual re-topology