I am planning a vanilla game, no expansions, no mods, as Terrans.
I have researched interstellar tourism 100+ turns ago I own 70 percent of the map and 50 percent of the planets have built an entertainment capital on one planet and a i have one planet with low gravity.
I am working on a port of call on Earth now but I have never received a single dollar from tourism. My economy tourism income is always ZERO.
What am I doing wrong?