about Morrowind Enhanced: with the right settings (Autolaunch) it will automatically start your "Morrowind/Arktwend, whatever" in the folder specified there
(if you want to start several installations alternately, an automatic start configuration is not so helpful, as it will probably start the wrong installation)
We cannot answer any questions about the French ArktwendMaster 1.0.5 and the Arktwend Patch 1.05, nor can we provide any support,
as it was not created by SureAI but by fans and we have not tested it ourselves.
the description on the patch download page says:
You need the German full version Arktwend 2.0.0 & Arktwend French 1.0.5. After installation,
only activate Arktwend Master 1.0.5 and the translation patch, nothing else. Further information can be found here. (this link was old, the page is deleted)
You can of course also install the latest
Arktwend patch 1.0.5.7.esp as well.
It may happen that you get an error message that a song or something else is missing, this query is there to ask if you still want to try to continue playing.
"Ja" means yes once, "Nein" means stop playing, and "yes to all" means you won't be asked again and yes.
I'm not sure what you mean by rules, it's the same engine, but otherwise a new game, the controls are like Morroworind, the story is completely new.