Longturn (slightly modified freeciv for multiplayer games played turn/day) community lives in http://www.longturn.org/
I now have stub-ruleset updated to be compatible with freeciv trunk revision 21779 (one I committed 15 mins ago). What is the proper way to contribute to your project? I could email it to someone with some instructions of how to turn it into usable ruleset. My email isI maintain so called stub-ruleset, that is meant to be used as starting point for developing new rulesets from scratch. I'll update it against latest freeciv development version for you to use (unless you rather start by modifying some of the existing rulesets) http://www.cazfi.net/freeciv/rulesets.html