Wildstar uses Zbrush, wow uses it (not all, but more and more), Riot uses it. That's 3 big companies (and many more) using Zbrush for handpaint. Why? because once you get it to work, it's freaking fast. You get your AO, heightmap, highlights, cavities, a shit ton of maps from the sculpt. You can even bake your matcaps like…