You mean the normal starter cubes? Yeah i have tested around and finally found out, you can save your desings as "star bases". It is logical, but when someones is a new player, the person would search for a cube called "starbase". Nobody knows you can just take the cube and save it as a starbase.
Yeah i saw your starbases. The thing is when i tried to figure out how you built your starbase, because i did not knew how to build mine at first, i have this wierd problem, that i can not see your starbase even when i try to edit it. I mean i can see it in the first design menu, but when i klick on the starbase, the base is invisible. Literally. I see all the parts you have used, but i can not see your base.
Yes, you can transfer Steam workshop designs to Galactic Civ 4. But not all of them work. I have transfered all of my designs. You have to subsrcibe to the design in Galactic civ 3 workshop, then the design will be saved under the "documents/my games/Galciv3/designs" folder. Or under "GC3crusade/designs"
But don´t ask me how hard it was to download it at all. 6 times my old designs were not downloaded and then they were not showing up in the Galactic Civ 3 designer. I had to go into the game, then into the designer, then open the steam workshop through the designer then unsubscribe ALL of the designs. Then i had to subscribe to my own designs again. But i had to klick on the picture of my design in the steam workshop, open it subsribe there and then close it.
After that i copied the downloaded files into the "Galciv4/designs" folder. So had all my old designs from Gal civ 3 back.
(I have posted the problem with your starbase in the discord, the devs said it looks like a bug. So you know. Your starbases are not visible right now in the designer. You can see a picture in the bug discord channel from Galactic Civ 4.)