Hello :)
I used all the 3 tools. From Sculptris the tool i meant is different, never seen such a tool in any other sculpting software i used. I will try to explain the tool a bit:
After selecting the reduce brush, you can apply the radius of the tool and the strenght. By clicking over the mesh at the vertices you like to reduce, you just click on it. And if u want you can click more times for more reduction. Thats a nice tool, but even the newest ZBrush don't have it, and i don't know why. The Remeshes for quads in ZBrush ist fast, but not as good as the tool in Sculptris.
And yes, i am really happy to be back. I started my unity project today for my 3D grinding rpg. Today was the day of the 2.0 update of the assetpack, that's why i started now. It can be that this will be a lifetime project, but lets see. The first level is planned and the half of the parts of this scene are ready in modeling. My rpg project will contain the genre "Cyber-Fantasy-RPG", with flying animated rocks, pbr of course and flying towns in the air. My goal is the way to develop this project and have a lot of fun. When i can say version 1.0 is ready, i will do youtube videos, my own small discord community for it and steam. Unfortunately i found no other place here to announce the project.
Wish you all well, see u soon here :)