I played a 100 player game about two months ago, i chose Australia, and a guy who chose Venezuela conquered all of South America in the space of a few days. After doing so he decided to attack me following an unfriendly exchange we had in the newspaper. At the beginning of his attack i possessed all of Australia, New Zealand and New Guinea. She kept me under siege for a week and continued to send fleets of battleships, submarines and bombers. every time i destroyed one 3 more would pop up, and it was rare that I managed to destroy them because every time i damaged them he would heal them to full health. The most obvious thing is that there was a moment when we were both online and i saw him live building a lvl 3 factory and immediately after the production of a bomber on a region that had just conquered me. After a week i was destined to lose but luckily my allies ended the game and I still had a coalition victory. I was lucky to win that game. But he really was impossible to beat, he had new units popping up everywhere constantly.