If you are archiving for the future, keep the raw .3ds files (No-Intro set). If you are actually playing on a hacked 2DS/3DS, you want the .CIA set, and you want it compressed.
| Use Case | Set Type | Storage Required | Recommended Hardware | | :--- | :--- | :--- | :--- | | | Top 100 Games (Decrypted) | 128 GB | 256 GB SSD | | Serious Collector | Full USA Retail (Trimmed) | 650 GB | 1 TB NVMe or HDD | | Preservationist | USA + EUR + Patches | 1.2 TB | 2 TB External HDD | | Complete Archivis | All Regions + DLC + Updates | 1.5 TB+ | 4 TB NAS (RAID 1) |
The short answer is for a full, unzipped, decrypted set. However, the long answer involves understanding formats, regions, and compression. 3ds Complete Rom Set Size
A full, comprehensive, decrypted 3DS ROM set is massive—easily exceeding 1.5TB to 2.5TB . For daily use, a 128GB or 256GB SD card is recommended, allowing you to carry a significant portion of the library.
You cannot simply say "a 3DS set is X GB." The size varies wildly based on three factors: If you are archiving for the future, keep the raw
: The 3DS home menu is limited to 300 icons , meaning you cannot have a truly "complete" set active on a single system at once.
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As of late 2024, estimates for the range from 1.7 TB to 1.83 TB . ROM Set Size Estimates
If you are a collector looking to archive a "Complete Set" (often referred to by scene groups as a "3DS Rom Set" or "3DS CIA Set"), you are not dealing with the kilobytes of the NES era or the megabytes of the GBA. You are entering . You cannot simply say "a 3DS set is X GB