Hi,sorry I didn't answer faster to your report. This isn't a conflict, in fact : the nether mod needs stairsplus, which isn't available in Debian's package because it's too old.
So to fix that bug, I first need a newer moreblocks package, then depend on it.
I'm working on it now, so I hope things will move in the right direction soon.
Thanks, Snark on #debian-games
