The Altera Centauri collection has been brought up to date by Darsnan. It comprises every decent scenario he's been able to find anywhere on the web, going back over 20 years.
25 themes/skins/styles are now available to members. Check the select drop-down at the bottom-left of each page.
Call To Power 2 Cradle 3+ mod in progress: https://apolyton.net/forum/other-games/call-to-power-2/ctp2-creation/9437883-making-cradle-3-fully-compatible-with-the-apolyton-edition
I had this idea for a mod: Wouldn`t it be cool if the names of cities founded on the Earth map would be chosen to fit the location? Like, if you found a city in the area where city x is in the real world, the city will get that name? Would be cooler than having displaced city names all the time..