The No-Intro 3DS DAT file (the master list of verified dumps) currently tracks approximately 3,200 unique "ROMs" when excluding alternate regions. That number grows to 4,500+ when including revisions (Rev 1, Rev 2).
You are missing the Japanese library. You are missing all DLC. You are missing the eShop exclusives (like the Picross titles and Pokémon Bank ). You have the "USA Core Set." It is a great start, but it is not technically "complete." 3ds Complete Rom Set Size
A comprehensive global archive (often referred to in "No-Intro" collections) clocks in at approximately 1.7 TB to 1.83 TB . The No-Intro 3DS DAT file (the master list
If you want every game, update, and DLC file currently preserved, you should have a 4TB hard drive ready. You are missing all DLC
As of late 2024, estimates for the range from 1.7 TB to 1.83 TB . ROM Set Size Estimates
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