We all know that there are a lot of Mario games. But how many games are there in the mainline Super Mario series? As jan Misali shows us, this turns out to be a difficult question to answer because of all the questions you have to answer along the way.

Some of the more-divisive ones include - is it still Super Mario if the gameplay changes significantly? Arguably, the New Super Mario Bros. games, which can be seen as their own side series, are more like the original Super Mario gameplay than, say, Super Mario 64 or Super Mario Odyssey. What about initial entries in sub-series spinoffs that are titled like sequels to mainline games, like Wario Land: Super Mario Land 3 and Super Mario World 2: Yoshi’s Island? And given the existence of enhanced ports and remakes, what even counts as a game? Is there a game called Bowser’s Fury, and if so is it an entry in the Super Mario series? It’s difficult to come up with a consistent set of definitions and answers to these questions that results in a list of games that feels correct.

To me, the main value of an analysis like this is as a reminder that categories are inherently slippery since they are more about grouping similar characteristics than hard and fast binary definitions, and furthermore that they can never really be true or correct - only useful. It’s something I try to keep in mind whenever people start arguing about genre definitions. Surely membership in a well-established game series is much simpler and more clear than membership in a broadly defined genre. If we can’t even agree how many Super Mario games there are, how can we hope to agree which games count as roguelikes? And if we can’t reach consensus on that question, then maybe it’s actually not that important.