Mario Kart 8 Deluxe is a great addition to the Nintendo Switch library, packing one of the best games of the series with lots of new features and tweaks that make it even better. Plenty of fans and eager Switch owners have determined that this is a game they want to keep loaded on their system in the long-term, so it's eay to take with them wherever they go in portable mode. But how much space will it eat up?
Mario Kart 8 Deluxe has an install size of 6.75 GB. As far as we know, Nintendo is not planning any additional downloadable content for this version of Mario Kart, so it's likely that number will remain static throughout the rest of its lifespan.
The question of size isn't just about the game itself, but how much space it will take up in comparison to other games. The Legend of Zelda: Breath of the Wild, for example, takes up a whopping 13.4 GB of space if installed directly onto your system. As a percentage of total Nintendo Switch memory, Mario Kart 8 Deluxe takes up just under 1/4 of the space on your system. If you use a micro SD card to add space to your system, Mario Kart 8 Deluxe will automatically install to that instead, and the percentage of space taken will vary by the size of your card.