Thank you Heavenfall

STARDOCK    This is way to hard   Put a "Remove Faction" option in the game.

Cheers

If you re-make the faction with the same name, it actually replaces the old one with the new.

And if you use a different race, and have made any custom units for the first race, you'll have access to units of both races with your new faction of the same name. Lather, rinse and repeat to create a faction with access to units of every race.

If you don't turn off Steam Cloud, all of your deleted files will be added back to your game, so deleting them only works if you do not use Steam Cloud.

This really needs to be fixed, but I've begun to wonder if that's possible.

I'm surprised that nobody has mentioned this, or perhaps that nobody has actually discovered it, but if you right-click the portrait of your created faction in the selection screen it will show a pop-up asking if you are sure you want to delete it.  Click yes, and it's gone.  I have not seen them re-appear in subsequent loads of the game, so I think it's a lot simpler than any of the information above.

Ah, I see.  How is that a problem, though?  The race won't appear in the game without a Sovereign to lead it, and there doesn't seem to be a limit to the number of times you can make a new faction.  Is it just the issue with having units from every race if you re-use a faction name?  That seems pretty easy to avoid, if so.

The memory part makes sense, but the sifting through 20 factions can be avoided by right-click-deleting the ones you don't want to see.  They may still exist in the meat of the game, but they won't clutter the list anymore.

Parrot: I actually never tried rightclicking on the list (because it would not make any kind of sense to me). After trying just now: It does not work. Thanks for the screen.