I think No Man’s Sky is also in the same boat.
I mean games which keep releasing further content over long periods without charging extra for it. Surely the amount of new sales eventually dwindles considerably. Is the cost of new content once you have the core game this low or…?
I bought no man sky at some point because I felt it had enough value to warrant the price so adding things do translate into sales. You just have to balance the investments into the game and how much extra sales you can get.
Terraria is also a good example. They have kept their game relevant for so long that they are actually getting brand new customers just trough birthrates. Everytime they release stuff people talk about the game and people that were too young to buy it at release suddenly buys it.
Can confirm. My nephew is 9, younger than Terraria itself, and has recently become obsessed with the game.