A "true" complete set often includes duplicates of the same game for different regions (USA, EUR, JPN), which nearly triples the storage needed. Updates & DLC:
Note: These figures exclude updates, DLC, and Virtual Console titles.
These are raw copies of physical game cartridges. They often contain "padding" (empty data used to fill up the standard cartridge size). A 500 MB game on a 1 GB cartridge will result in a 1 GB .3DS file unless it is manually trimmed.
Are you archiving these on a or installing them directly to a modded 3DS console ? 3ds Complete Rom Set Size
Several technical factors dictate why 3DS collections consume varying amounts of hard drive space. 1. Game Card Capacities
If you want updates, DLC, and VC titles included, you need 4TB .
However, for the digital archivist, the 3DS represents the end of an era—the last Nintendo handheld to use cartridge media before the hybrid Switch. Preserving its complete library, all 1.5 terabytes of it, is a noble (if expensive) hobby. Just make sure you invest in a good hard drive, learn how to trim your ROMs, and verify your hashes. Happy emulating. A "true" complete set often includes duplicates of
As of 2026, a truly comprehensive 3DS complete ROM set (including all regions—USA, EUR, JAP—and all eShop titles) is massive.
If your goal is to collect every North American retail release and its updates, you should plan for roughly . For a truly exhaustive, multi-region archive, your storage needs could easily exceed 1.2 TB . By making informed choices about file formats (prioritizing .CIA), using tools to trim your ROMs, and selecting the right storage medium for your needs, you can efficiently manage a large 3DS digital library.
If 1.5 TB sounds terrifying, do not worry. The 3DS file structure is surprisingly compressible because of the way Nintendo padded cartridges for manufacturing. They often contain "padding" (empty data used to
Examples include Mario Kart 7 (1 GB), The Legend of Zelda: A Link Between Worlds (685 MB), and Animal Crossing: New Leaf (1 GB).
Keeps only the optimal version of each unique game (usually USA or EUR with English support).
A focused set of all NA releases, including associated updates and DLC, is estimated at roughly eShop-Only Collection: