What's resolution of such pre-render characters?

Also, is background made via "slicing"?

For anyone wondering, sprites like that are usually 3D models rendered as a 2D image. This is how Diablo II sprites were made, and how Donkey Kog Country for SNES was made too.

wow great job! I have this same asset pack but couldn't get it looking nearly this clean.

Very cool.

That is so beautiful

Very nice.

Nope.
You can find them on http://www.pioneervalleygames.com/index.html

What project is this? Are you making the assets yourself?