LT50 is a Freeciv 2.6 game with wc-style ruleset based on the multiplayer concept. In LT50 we have global warming and the tools to prevent it from happening. You can build city improvements to embrace science and peace. The game also has military and diplomatic aspects since all the nations are played by human players. More info available on the forum:
http://forum.longturn.net/viewforum.php?id=40 **** NOTICE **** The game was postponed *again* for few weeks until 25.11.2019 because we need more time for testing the 2.5 -> 2.6 transition.