Title. Is there a reason there's no True End / Calasmos category? Is it just due to lack of runs, or lack of interest?

I'm assuming it's a bit of both. Calasmos will add a significant amount of time to a run, considering his overall difficulty if one goes straight to him without any form of advance preparation. Getting an idea of what the minimum level he can be beaten at, and minimum gear would be needed. That said I wouldn't be surprised if he added at least an hour or two.

I know people are doing them (just like they do ultimate dragon for DQVIII etc.) and it might be that it's just a bit silly in length?

Just a heads up since I stumbled on this again: the category exists!