I played as Duncan Edwards on an Archipelago map but I didn't find the game difficult. Suzanne Fielding found 2 fragments of the signal circa turn 130 on Epic speed. I built a city around 15 tiles directly away from her capital in case she case she could have attained Contact victory, however she didn't declare war on me or anything. She got into a bit of war with Eloide and I was easily able to take Suzanne Fieldings capital. Plus no other colony came even close to reaching a victory, only 2 colonies researched the tech to reach their victory but their affinity points were a good bit behind mine. Will Soyuz difficulty be much tougher? I'd like for to be around Emperor difficulty from Civ V.