Storage estimates differ across current regional listings, so the console's local product page is the correct final check.
Check the Splatoon Raiders product page in your own console region before reserving storage. Current Nintendo listings do not show one consistent worldwide number: the Australian listing shows about 13.1 GB, while the US listing has displayed a larger estimate. Updates and regional packages can also change the installed total.
Leave space above the displayed download estimate for installation work and future updates. The eShop value on the target Switch 2 is more useful than a cached search snippet or an old screenshot.
Nintendo's current listing includes Save Data Cloud support. That does not mean every local file is mirrored continuously or that cloud access works without the relevant Nintendo account and service conditions. Before moving systems, allow the current console to synchronize, then verify the timestamp shown by Nintendo's save-data interface.
This page records the discrepancy openly because collapsing two official regional values into a single confident number would be less accurate. It will use a universal figure only when Nintendo's current listings converge or explain the package difference.
Sources
QUICK ANSWERS
Questions players ask next
How big is Splatoon Raiders?
Current Nintendo regional listings differ, showing estimates in roughly the 13–20 GB range; check the local eShop value on your console before downloading.
Does Splatoon Raiders support cloud saves?
Nintendo's current product listing includes Save Data Cloud support, subject to Nintendo's service requirements.
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