The game is likely to be a big-seller in 2020, and the Switch has had plenty of those over the last three years.
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If you're looking to preorder the game from the Nintendo eShop, we've got some great news.
How Big Will Animal Crossing: New Horizons Be?
According to the Nintendo eShop listing for New Horizons, this instalment will clock in at 6391MB – less than 6.4GB.
That's an impressively small file size, something Nintendo has been very good with this generation. Mario Kart 8: Deluxe, for example, clocks in at just over 7GB, while Super Mario Maker 2 is less than 3GB.
Of course, you can always pick up a physical version to save your system memory or SD card. We've put together a handy pre-order guide here.