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Three formats. One is not what it looks like.
When you buy a Nintendo Switch 2 game in physical form, you are not necessarily buying the game on the card. Nintendo has introduced three distinct physical formats since the Switch 2 launched on June 5, 2025, and two of them require an internet download before you can play. Only one format puts the full game data on the card you are holding.

As of November 2026.

:STATS [links:https://en-americas-support.nintendo.com/app/answers/detail/a_id/68415]
[icon:CHART] Physical formats for Switch 2 games | 3
[icon:CHECK] Formats that contain the full game on the card | 1
[icon:FIRE] Major titles confirmed as Game Key Cards | 150+
[icon:TARGET] Nintendo first-party games on full cartridges | All confirmed
[icon:BOLT] Switch 2 units sold (to September 30 2026) | 26.35 million

:TABLE [title:The three physical formats compared, links:https://en-americas-support.nintendo.com/app/answers/detail/a_id/68415]
Feature | Full Game Card | Game Key Card | Code-in-a-Box
Game data on the card | Yes, complete | None | None
Internet needed to play (first time) | No | Yes (full download) | Yes (full download)
Internet needed after download | No | No | No
Card must be inserted to play | Yes | Yes | No
Resellable or lendable | Yes | Yes | No
Uses your storage space | No | Yes | Yes
Identified on packaging by | Nothing special | Key icon on box | "Download code" text

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What a Game Key Card actually is.
Nintendo's official support page explains it plainly: "Game-key cards are different from regular game cards, because they don't contain the full game data. Instead, the game-key card is your 'key' to downloading the full game to your system via the internet."

The practical flow:
• Insert the Game Key Card into your Switch 2.
• Download the full game over your internet connection (storage required).
• Insert the card every time you want to launch the game.
• If you lose the card, you cannot play, even though the game data is on your console.

Nintendo requires packaging to display a key symbol so buyers can identify Game Key Cards before purchasing. The card is resellable and lendable: whoever holds the card can download and play. But there is a known consumer concern: Nintendo has indicated that games released on Game Key Card may never receive a full-data cartridge re-release.

:LINK
https://en-americas-support.nintendo.com/app/answers/detail/a_id/68415
Nintendo support: Game Key Card official overview

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Why it matters for your storage.
A regular game card uses zero console storage. A Game Key Card download uses your Switch 2's internal storage or a microSD Express card for the full game data, often 30 to 100 GB per title. If you buy several Game Key Card titles, storage fills fast. The Switch 2 ships with 256 GB internal storage, and large games can claim 20 to 40 percent of that in a single download.

:TABLE [title:Major Game Key Card titles (confirmed), links:https://www.destructoid.com/all-switch-2-game-key-card-titles-listed/]
Title | Publisher | Type | Storage note
Elden Ring: Tarnished Edition | Bandai Namco | GKC | Includes Shadow of the Erdtree DLC
Final Fantasy VII Rebirth | Square Enix | GKC | Full game download required
Final Fantasy VII Remake Intergrade | Square Enix | GKC | Full game download required
Hogwarts Legacy | Warner Bros. | GKC | Full game download required
Assassin's Creed Shadows | Ubisoft | GKC | Full game download required
Monster Hunter Wilds | Capcom | GKC | December 4 2026 release
Metaphor: ReFantazio | Atlus | GKC | Full game download required
Persona 3 Reload | Atlus | GKC | Full game download required
Yakuza 0: Director's Cut | SEGA | GKC | At launch June 5 2025
Street Fighter 6: Fighters Edition | Capcom | GKC | At launch June 5 2025
Hitman: World of Assassination | IO Interactive | GKC | Signature Edition
Sonic X Shadow Generations | SEGA | GKC | At launch June 5 2025
Kingdom Come: Deliverance 2 | Deep Silver | GKC | Full game download required
Dragon's Dogma 2: Dark Arisen | Capcom | GKC | Full game download required
Minecraft | Microsoft | GKC | Full game download required

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Nintendo first-party games use full cartridges.
Every confirmed Nintendo-published first-party title ships on a full game card: the complete game data is on the cartridge, no download required, no storage used. This includes Mario Kart World (16.48 million units sold by September 30, 2026), Donkey Kong Bananza, Hyrule Warriors: Age of Imprisonment, Kirby Air Riders, Pokemon Pokopia, Star Fox, Splatoon Raiders, Fire Emblem: Fortune's Weave, and both Zelda NS2 Editions. The gap is consistent: third-party publishers use Game Key Cards for large titles while Nintendo's own games remain on full cartridges.

:TABLE [title:Nintendo first-party titles confirmed as full cartridges, links:https://www.nintendowire.com/guides/switch-2/all-physical-games-and-type/]
Title | Released | Sales (to Sep 30 2026)
Mario Kart World | June 5 2025 | 16.48 million
Donkey Kong Bananza | July 17 2025 | 5.05 million
Hyrule Warriors: Age of Imprisonment | November 6 2025 | 1.00 million
Kirby Air Riders | November 20 2025 | 1.94 million
Zelda: Breath of the Wild NS2 Edition | June 5 2025 | Full cartridge
Zelda: Tears of the Kingdom NS2 Edition | June 5 2025 | Full cartridge
Pokemon Pokopia | March 5 2026 | 4.04 million
Star Fox (new entry) | June 25 2026 | 1.17 million
Splatoon Raiders | July 2026 | 2.42 million
Fire Emblem: Fortune's Weave | September 17 2026 | 1.34 million

:NOTE
Before buying a physical Switch 2 game: check the box for the key symbol. Its presence means you are buying a download licence tied to that card, not a game on a card. You will need internet access and free storage before you can play. For gifting or offline households, a Game Key Card title may catch you off guard.

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How to check before you buy.
• In a shop: look for the key symbol printed on the front or back of the box. Nintendo requires it on all Game Key Card packaging.
• Online: retailers like Nintendo's own eShop listing and Amazon UK now label Game Key Card titles in the product description after consumer backlash in mid-2025.
• Full list: Nintendo Wire maintains a complete, regularly updated table of all Switch 2 physical releases tagged as full cartridge, Game Key Card, or code-in-a-box. See the link below.

:LINK
https://nintendowire.com/guides/switch-2/all-physical-games-and-type/
Nintendo Wire: every Switch 2 physical game and its format type

:LINK
https://www.destructoid.com/all-switch-2-game-key-card-titles-listed/
Destructoid: all confirmed Switch 2 Game Key Card titles