Yes, the game would be quite broken if one nation was able to win against 5 other. Still I think that R'lyeh is a really good nation and that you are a good player. You were in the best spot before everyone ganged up you.
Good move to pillage the northern coast by the way. How did you manage to get one province from 10k population to 600? My army had to resort to eating their dead and some people got some nasty diseases.
