Each Skylanders figure uses an passive NFC chip.

As the internal NFC chips in physical Skylanders eventually fail (bit rot), these digital backups ensure the characters remain playable forever.

The Skylanders franchise (2011–2018) revolutionized toys-to-life gaming by storing persistent character data on physical NFC-enabled figures. Each figure communicates via a proprietary .bin file—a 512-byte or 1KB binary image that contains encrypted user data, character stats, and ownership flags. This paper provides a comprehensive analysis of the Skylander .bin file format, covering its logical block layout, custom encryption scheme (based on a rolling XOR with a derived key), checksum validation, and practical methods for reading/writing these files outside the official portal. We also discuss legal and ethical boundaries for modding and preservation.

Not all BIN files are created equal. A standard "Tree Rex" BIN file is worthless (everyone has it). An exclusive file—like Skylanders: Swap Force "Scarlet Ninjini" —is gold dust.

These files are used in conjunction with tools like NFC Tools or specialized apps on Android to emulate a physical toy.

A repository designed for the Flipper Zero device, this project includes BIN files for all mainline games (from Spyro’s Adventure to Imaginators ), plus the series. Because the files are stored in standard NFC dump format, they can be used with other writers and emulators as well.

Over the years, unreleased prototype figures have leaked into the wild. Their BIN files offer a fascinating look at what could have been.

Example hex diff (original vs. modded) :

Some physical Skylanders, like the Ro-Bow or Wild Storm from Skylanders: Imaginators , fetch hundreds of dollars on the secondary market. Exclusive BIN files allow players to experience these locked levels and characters without spending a fortune.

Toys-to-life games require bidirectional data flow: the game writes experience, hats, and upgrades to the toy, while the toy provides identity and progress. Skylanders uses a and a secret 7-byte key embedded in each figure’s NFC chip (NXP NTAG203 or equivalent). When the portal reads the tag, it extracts a raw binary dump—commonly saved as a .bin file by third-party tools (e.g., SkyReader , SkyManager , Portal GUI ).

: Write the BIN file to the tag. Ensure the software copies the UID from the BIN file onto the tag's Sector 0.

0x0B: 0x05 (level 5) → 0x14 (level 20) 0x0C–0x0F: 0x00000FA0 → 0x05F5E0FF (max XP)

For Skylanders collectors and players, the thrill of the hunt for rare figures is unmatched. However, as the toys-to-life market has aged, acquiring exclusive, variant, or unreleased figures has become prohibitively expensive. Enter —the digital, emulated version of these physical toys.