According to the creator of Darkwing Duck, [Tad Stones][1], the show exists within an alternate universe from Duck Tales.

> *“Because Launchpad appeared in DuckTales and we used Roboduck as the
> Superman character, the hero who gets all the glory as opposed to
> Darkwing, fans try to connect the two realities. **They are two
> different universes in my book.** We work in the alternate Duckiverse,*

> <sub><sup>[Darkwing Duck and DuckTales Are in Separate Universes and This Is Not Okay][2]</sub></sup>


  [1]: https://en.wikipedia.org/wiki/Tad_Stones
  [2]: http://io9.gizmodo.com/darkwing-duck-and-ducktales-are-in-separate-universes-a-1786479437