Shogun, I played nonstop for two months.

This is because I was working at Electronic Arts as a tester, not because the game was spectacularly brilliant. It was an excellent concept, and even the technical implementation was pretty darn good, but there were some distinctly craptastic moments of Bad Game Balance which I and others repeatedly reported to the dev team, who repeatedly did nothing about them.

Mind you, I still kinda like the fact that you can die of old age and lose the game if you have no heirs.