The 5th version of CREATE a CLUB though, is quite complicated. It's been highly marketing by Roberto Baggio in Japan, and allows personalization of the player's clubhouse, player's stadium, etc. Some are eye-candy, but most of them improve player conditions, and increase the player's interest in joining your club.
The difficulty is WAY HARDER than FM though, you start with a bunch of BAD players on your team, making a few signings that would take a few years game time. You will lose many games in the beginning, but like in Dafuge, you actually bring them up until you win the Asian Champion's League.