In 3.0, I also used vampirism. This time, I had a double growth rate from dwellings. I found an island with dwellings at the end of the week. Therefore, with almost no time delay, I bought two growth upgrades. I didn't return to the dwellings after that.
In 3.0, I also used vampirism. This time, I had a double growth rate from dwellings. I found an island with dwellings at the end of the week. Therefore, with almost no time delay, I bought two growth upgrades. I didn't return to the dwellings after that.