ONE PIECE Grand Gourmet System Requirements: What's Confirmed (and What's Still TBA)

ONE PIECE Grand Gourmet System Requirements: The Short Answer

If you plan to run the Straw Hat Crew's new restaurant sim on PC, the ONE PIECE Grand Gourmet system requirements are the first thing to check before you spend money on a pre-purchase. The catch: as of the 2026-10-21 snapshot of the game's Steam store page, the ONE PIECE Grand Gourmet system requirements are still largely listed as TBA, with only a 64-bit processor and operating system confirmed. This guide walks through exactly what the official storefronts publish, what is missing, and how to prepare your machine so launch day doesn't catch you off guard.

Here is the honest summary: nobody — not Kairosoft, not Bandai Namco — has published a CPU model, GPU model, RAM figure, storage figure, or DirectX version for the PC build yet. The Steam page's Minimum and Recommended blocks both contain the same single line and the same placeholder note.

What Steam lists for Minimum and Recommended specs

The table below reproduces every field the Steam store page exposed when the reference snapshot was captured on 2026-10-21. Blank rows are not omissions on our part — the fields were simply not filled in on the store page.

Source: ONE PIECE: Grand Gourmet on Steam, captured 2026-10-21. Scope: Windows PC build as listed on the Steam storefront.

That single confirmed line is genuinely useful, though: a 64-bit requirement rules out 32-bit Windows installs, which have been uncommon on gaming rigs for years but still turn up on older office hardware and some budget laptops.

What the Steam Page Does Tell You Beyond Specs

While the ONE PIECE Grand Gourmet system requirements remain incomplete, the store page is generous with context that helps you judge whether the game is a fit for your setup and your library.

• Developer: Kairosoft Co., Ltd
• Publisher: Bandai Namco Entertainment Inc.
• Genres/tags: Casual, Simulation
• Release date on Steam: October 22, 2026 — with the store page's own announcement noting an unlock at Thursday, October 22, 2026, 10:00 PM UTC
• Price snapshot: As of 2026-10-21, Steam listed a pre-purchase price of $19.99 (USD, VAT included where applicable)
• Features: Single-player, Steam Achievements, Steam Cloud, Family Sharing
• Input: Xbox controllers, PlayStation controllers, and Steam Input API support listed
• Languages: The captured language table shows interface support for 12 languages (English, French, Italian, German, Spanish–Spain, Spanish–Latin America, Thai, Portuguese–Brazil, Simplified Chinese, Traditional Chinese, Japanese, Korean), with the Full Audio and Subtitles columns left blank
• ESRB: RP (Rating Pending) at the time of capture

Two things stand out for hardware planning. First, Steam Deck Compatibility was listed as "Unknown" as of 2026-10-21, so there is no verified Deck rating to lean on yet. Second, Steam recorded "No user reviews" as of 2026-10-21, which means there is no player-reported performance data available — no community reports about frame rates, load times, or laptop heat. Anyone quoting performance figures for this build is guessing.

A note on the release-date discrepancy

Steam lists October 22, 2026, while the Bandai Namco official site and Nintendo's Australian store page both list October 23, 2026. The Steam announcement's 10:00 PM UTC unlock time is a plausible explanation for the one-day gap — a late-UTC unlock lands on the next calendar day in parts of Europe, Asia, and Australia — but treat that as reasoning rather than an official statement. Check your regional storefront for the date that applies to you.

Switch and Mobile Versions: Different Hardware, Different "Requirements"

PC specs aren't the whole story, because ONE PIECE: Grand Gourmet ships across several platforms. According to the official Bandai Namco page for ONE PIECE: Grand Gourmet, the game arrives on Nintendo Switch, Nintendo Switch 2, Steam, the App Store, and Google Play. Bandai Namco lists the release date as October 23, 2026, names Kairosoft Co., Ltd as developer, and classifies it as a Management Sim with single-player support.

Nintendo's Australian listing adds concrete numbers that the PC storefront doesn't provide:

Source: ONE PIECE: Grand Gourmet on Nintendo.com.au, captured 2026-10-21.

A 347 MB console build suggests a compact game, but resist the temptation to translate that into a PC storage figure — console file sizes routinely differ from PC installs due to compression, resolution assets, and platform packaging. It is a hint, not a requirement.

On mobile, Bandai Namco includes the standard caveat that some devices may not be compatible and that data charges are the user's responsibility. No device list or minimum OS version was published in the captured material.

How to Prepare Your PC While the Specs Are Still TBA

You can't benchmark against a blank table, but you can do a few useful things that don't depend on the ONE PIECE Grand Gourmet system requirements being finalized.

1. Confirm you're on 64-bit Windows. The only confirmed requirement is a 64-bit processor and OS. On Windows 11, open Settings → System → About and check "System type." If it says 32-bit, you'll need a different machine or a clean 64-bit install.

2. Don't buy hardware yet. With no GPU, VRAM, or RAM figures published, any upgrade purchased in anticipation is a gamble. The Steam page's "Additional Notes: TBA" is the field to watch — that's where Kairosoft and Bandai Namco will likely drop the details that matter.

3. Wishlist or follow the store page. The Steam page pushes updates to followers, so the moment the TBA fields are replaced you'll see it without refreshing a third-party mirror.

4. Keep your controller situation sorted. Steam Input API support plus Xbox and PlayStation controller listings mean you can plan on a gamepad, which suits a menu-heavy management sim. Test your pad now rather than at launch.

5. Revisit Steam Deck expectations later. With Deck compatibility marked Unknown as of 2026-10-21, don't assume the game will be Verified just because it looks lightweight. Valve's rating can take time after release.

6. Leave headroom in your boot drive. General good practice, not a game-specific rule: keep a comfortable buffer of free space on your fastest drive so a mid-size install never forces an uninstall decision.

What to expect from a Kairosoft-built sim

The developer credit is the most useful planning clue available. Kairosoft is known for compact, systems-driven management titles, and this project pairs that studio with a major licensed property under Bandai Namco's publishing umbrella. That doesn't certify anything about the PC build's demands — but it does suggest the game is unlikely to be a ray-traced showcase. Again, this is reasoning from the credited developer, not a published spec.

FAQ

What are the ONE PIECE Grand Gourmet system requirements right now? As of the 2026-10-21 snapshot of the official Steam store page, the only confirmed requirement is a 64-bit processor and operating system, listed identically under both Minimum and Recommended. Processor, memory, graphics, and storage fields all read as TBA.

Will ONE PIECE Grand Gourmet run on Steam Deck? Unclear. Steam Deck Compatibility was listed as "Unknown" on the store page as of 2026-10-21. No Verified or Playable rating had been issued at that point.

When will the full ONE PIECE Grand Gourmet system requirements be published? No date has been announced. Steam's "Additional Notes" field for both spec tiers simply says TBA. Watch the store page rather than relying on secondhand summaries.

How big is the download? For Nintendo Switch and Switch 2, Nintendo lists 347 MB per platform as of 2026-10-21. No PC install size had been published on Steam at that time, and console file sizes shouldn't be used as a stand-in for the PC build.

Is the game single-player only? Yes — both the Steam feature list and Bandai Namco's official page describe a single-player management sim. Nintendo's listing confirms one local player.