Lineage topped 3 million subscriptions at one point, and Lineage II topped 1 million. So its probably a 10-million selling franchise at a minimum.
But no way it sold 43 million unique games. Even if both games came out in 1998, and Lineage sold 3 million copies and Lineage II 1 million copies every single year, they'd only reach 40 million this year. Clearly they are inflating the number through total subscriptions somehow (bulk subscriptions from internet cafes, renewed subscriptions from existing players, etc).
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.







