Mario Kart World, the upcoming Nintendo Switch 2 title, has a reported file size of 23.4 GB, making it notably larger than predecessors like Mario Kart 8 Deluxe at around 11 GB.

File Size Details

This 23.4 GB footprint reflects its ambitious open-world design, supporting up to 24 online players, local wireless for 2-8, and free-roam exploration across expansive courses—far beyond traditional track-based racing.

Nintendo's Japanese store listings confirmed this spec in early April 2025, alongside smaller sizes for launch peers like Donkey Kong Bananza (10 GB).

One US store page lists it slightly lower at 22 GB, possibly a preliminary or regional variance.

Comparisons to Past Games

  • Mario Kart 8 Deluxe (Switch) : 11.3 GB total—Mario Kart World is over double, hinting at 4K textures, denser worlds, and more content like photo modes.
  • Tears of the Kingdom (Switch) : ~16 GB (with expansions nearing 20 GB); fans speculate Mario Kart World's map could rival Hyrule's scale (surface, depths, sky).
  • Rivals like Forza Horizon 5 : 110 GB or Gran Turismo 7 at 96.8 GB—Nintendo's compression keeps it lean for 256 GB Switch 2 storage.

Forum Buzz & Speculation

Reddit's r/mariokart lit up post-reveal: "3-4x larger than 8DX... ton of content" topped comments, with users eyeing 4K assets and massive worlds.

Famiboards users called it "massive" vs. TOTK, while some joked "20GB just for character models!"—reflecting hype for its Grand Prix chaining into open exploration.

"World is going to be huge" – nervouspolygon on Reddit, capturing the excitement.

Why So "Big" Yet Compact?

As a 2025 launch title (post-Switch 2 reveal), its size balances cartridge limits with downloads, prioritizing lush details over bloated assets—ideal for portable play.

Trending discussions note relief for Switch 2's expandable storage, avoiding past multi-GB patches.

Expect day-one patches; final size may tick up with multilingual support (12+ languages).

TL;DR : Mario Kart World clocks in at 23.4 GB —huge leap for an open- world racer, fueling forum hype on its scale and features.

Information gathered from public forums or data available on the internet and portrayed here.