Although similar in name, Dark Cloud and Dark Cloud 2 are not directly related; outside of the U.S., the latter was known as Dark Chronicle.

Are Dark Cloud 1 and 2 related?

in fact, Are Dark Cloud 1 and 2 connected? No. The games are obviously related–a lot of the items and monsters are retained, as well as the basic gameplay, but there are no reappearing characters or references to the first game. In fact, “Dark Cloud 2” was originally called “Dark Chronicle”.

Will there be a Dark Cloud 3?

Over the past few years, the Dark Cloud community has found a lot of new info about Dark Cloud 3. Most curiously, we've found proof that Rogue Galaxy was originally called Dark Cloud 3 and was developed as the sequel for some time.