Reader Mailbag · Straight Answers

The Controller
Pak FAQ

N64 Controller Pak Reader · All Your Questions

32KBCARDREADER

What is an N64 Controller Pak?

The Controller Pak is the Nintendo 64’s memory card. It plugs into the bottom of the controller and stores game saves on a 32 KB filesystem of 128 pages. It is often called a memory pak or memory card.

What save files does this reader open?

It opens exact 32,768-byte raw Controller Pak images saved as .mpk, .pak, or .bin, plus exact 36,928-byte DexDrive .n64 backups. Cartridge save files such as .eep, .sra, and .fla are different formats.

Does my save file get uploaded anywhere?

No. The reader runs entirely in your browser using typed arrays, so the file never leaves your device.

Can it fix a corrupted Controller Pak save?

It can safely restore redundant ID or allocation-table metadata when one checksum-valid copy is authoritative. If both copies are invalid or disagree, it stays read-only rather than guessing. It does not repair corruption inside a game’s save payload.

How do I get a .mpk file from my real Controller Pak?

Export the 32 KB card image with a Controller Pak dumper such as a DexDrive, a flashcart save tool, or a compatible adapter, then drop the file here.

Where can I find free N64 games to try?

The free-homebrew shelf below links to a short list of creator-hosted ROM releases with clear licenses. They run in an emulator or on compatible flashcart hardware; the Pak Reader does not run games.

See the free releases

How are the game values estimated?

Each value is a rough collector range for a loose cartridge and a complete-in-box copy, rounded from recent public sales on eBay and PriceCharting and refreshed periodically. The eBay and PriceCharting links show the live numbers.

THE SPECS
Pages
128
Size
32 KB
Formats
.mpk / .pak / .bin
DexDrive .n64
Upload
Never
READER Q&A

Which games used the Controller Pak?

About 150 titles supported it, especially sports, racing, and fighting games. Cartridges could include their own writable memory, but many publishers used the removable Controller Pak instead.

EXPLORE
Super Mario 64GoldenEye 007Super Smash Bros.

No commercial ROM required

Free Homebrew to Try

These creator-hosted releases include a playable N64 ROM. Use an emulator or compatible flashcart; the Pak Reader itself does not run games. Links and licenses were checked July 28, 2026.

  1. N64brew Game Jam 2024

    A free collection of small N64 games from the 2024 N64brew jam, packaged together by the organizers.

    License: MIT Open release 1.2.1

  2. DamN64

    A compact 2025 game-jam release with a ready-to-run ROM in its creator repository.

    License: MIT Get the ROM

  3. Driving Strikers 64

    Local or online car soccer built for original N64 hardware, with a free developer-hosted ROM release.

    License: Unlicense Open release 1.03

  4. Pong64

    A homebrew take on Pong for N64, available as a ready-to-run ROM from the project’s release page.

    License: Personal, noncommercial use Open release 0.6

  5. Memory64

    A small memory-matching game with a prebuilt N64 ROM kept alongside its source.

    License: Apache-2.0 Open the ROM file

Get Your Save Off Real Hardware

To read a real Controller Pak you first dump it to a .mpk or .n64 file. These are the devices that do it (links open eBay).

  • N64 Controller PakA genuine memory card if yours is lost or worn out. Find on eBay
  • DexDrive (N64)The classic PC adapter for backing up Controller Pak saves to .n64 files. Find on eBay
  • EverDrive 64 flashcartModern flashcart that can dump and restore Controller Pak saves. Find on eBay
  • USB Controller Pak adapterPlug-and-play adapters that read paks over USB. Find on eBay

eBay links are affiliate links; purchases may earn a commission at no extra cost to you.