C-evo
C-evo Distant Horizon; Empire Building Game
...://civilization.fandom.com/wiki/Game_mechanics_(C-evo)
https://civilization.fandom.com/wiki/Strategies_(C-evo)
http://www.c-evo.org/text.html#design
http://www.c-evo.org/faq.html
http://www.c-evo.org/bb/index.php
External Map Generator for more varied terrain
https://sourceforge.net/projects/cevomapgen/