Dos 2 sold way less than than bg3. People are underestimating the popularity and reach of the bg and dnd name. Throw in Larian's own fame plus all the hype is why it was successful. If this game was named fis 3 and not bg3, it would have sold less. Now that said, when dos 3 is released, I can see it selling a lot because of all the people bg3 brought Larian to their attention.