“Two Seasons: Summer-Autumn 2014” Tournament. Online games for rating (reports, discussions).

Going to the center through one-way paths, 2 Utopias (1 maxed out) didn't yield anything useful, but next to the Utopia, in the swamp, Liches guarded a box with all the Air elementals, which solved the problem, and I built a port in the Tower faction's castle.
Thanks for the game!