Quarantine Zone: Miami Zero is a prequel campaign for Quarantine Zone: The Last Check. It launched on October 15, 2026, as free downloadable content for owners of the original game. You do not buy Miami Zero as a separate game: you need access to the base game through a purchase or a supported Xbox Game Pass subscription. On PC, the minimum target is 1080p at 30-plus frames per second on low settings; the recommended target is 1080p at 60 frames per second on high settings.
What you are buying
Miami Zero is an additional campaign set in Miami, at the origin of the infection. Its story follows an investigation into an evolving virus while you continue checkpoint duties, develop treatments and prepare an escape route. The campaign is designed as downloadable content (DLC), not as a standalone product with its own ownership license.
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The official Steam Community announcement gives October 15, 2026 as the release date and describes the add-on as free for owners of Quarantine Zone: The Last Check. That wording is important: the free price applies to the DLC entitlement, while the base game remains the product you must own or otherwise access. The announcement does not document a separate paid “Miami Zero Edition.”
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Do you need the base game?
Yes, you need access to the original game to use the campaign. A normal Steam purchase of the base game supplies that ownership. On Xbox platforms, Xbox Wire lists Miami Zero as available on Xbox Series X|S and PC, including Xbox and PC Game Pass, and describes it as free to owners of the original game.
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Ownership and subscription access are different. A purchased base game is a continuing license subject to the platform’s terms. Game Pass is a subscription entitlement that lasts while your subscription and the game’s catalog availability remain active. If you stop subscribing, access obtained only through the subscription can end even though the DLC itself has no separate price. Check the current listing in your region before subscribing, because catalog availability and terms can change.
| Situation | What it means for Miami Zero | What to check |
|---|---|---|
| You own the base game on Steam | Claim and install the free DLC from the game’s store or library listing. | Use the same account that owns the base game and confirm the DLC appears in your library. |
| You own the original game on Xbox | The DLC entitlement is free for the original-game owner. | Sign in with the account that owns the game and use the console or Xbox app listing to install the add-on. |
| You play through Xbox Game Pass on PC or Xbox Series X|S | Xbox Wire lists Miami Zero and the original game as available through the Game Pass ecosystem. | Verify that both the base game and the DLC are currently included for your plan and region. |
| You only want Miami Zero without the original game | There is no documented standalone entitlement. | Plan on obtaining access to Quarantine Zone: The Last Check first. |
Where can you play it?
The documented platforms are Steam on PC, Xbox on PC through the Xbox app, and Xbox Series X|S consoles. The official site links to Steam and Xbox, while Xbox Wire specifically identifies Xbox Series X|S and PC and includes Xbox and PC Game Pass.
No PlayStation, Nintendo or previous-generation Xbox release is established by the cited announcements. Do not assume that a PC purchase transfers to a console, or that a console purchase transfers to Steam; licenses are normally tied to the storefront account and platform shown on the product page.
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Steam on Windows PC
Steam is the straightforward purchase route if you want permanent base-game ownership on PC. Buy or already own the original game, then open its store or library page and look for Miami Zero in the DLC section. The add-on should show no additional charge for an eligible owner. Install the base game and the DLC on the same Steam account.
Xbox Series X|S
On Xbox Series X|S, use the Xbox store listing associated with the original game. Owners can add the free campaign to their library; Game Pass subscribers should use the current Game Pass listing and confirm that the base game and add-on are included under the active plan.
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Xbox app for PC and PC Game Pass
The PC Game Pass route uses the Xbox app rather than Steam. Sign in with the Microsoft account holding the subscription or purchase, open the game’s page, and install the base game and Miami Zero from the available add-ons. A Steam copy and an Xbox app copy are separate PC storefront entitlements, so choose the ecosystem in which you intend to play.
PC system requirements
Steam lists two hardware targets. The minimum specification is aimed at low visual quality at 1080p and 30-plus frames per second; the recommended specification targets high quality at 1080p and 60 frames per second. Both require DirectX 12 and 12 GB of available storage.
| Component | Minimum target | Recommended target |
|---|---|---|
| Operating system | Windows 10 x64 | Windows 11 x64 |
| Processor | Intel Core i7-5820K or AMD FX-8370 | Intel Core i7-10700 or AMD Ryzen 5 5600X |
| Memory | 8 GB RAM | 16 GB RAM |
| Graphics | GeForce GTX 980, Radeon RX 470 or Arc A380 | GeForce RTX 2080 or Radeon RX 5700 |
| Graphics API | DirectX 12 | DirectX 12 |
| Storage | 12 GB available | 12 GB available |
| Stated performance target | Low quality, 1080p, 30-plus FPS | High quality, 1080p, 60 FPS |
How to interpret the minimum specification
The minimum list is not a promise of 60 FPS or high settings. It describes a low-quality 1080p target at 30-plus FPS. Older processors such as the i7-5820K and FX-8370 can meet the listed requirement while still producing uneven frame times in busy scenes, so leave headroom for background applications and keep graphics drivers current.
Eight gigabytes of RAM is the stated floor. On a modern Windows installation, browsers, launchers and recording tools can consume a meaningful part of that capacity. Closing unnecessary applications before launching is sensible, but the only published requirement is 8 GB.
How to interpret the recommended specification
The recommended list moves to 16 GB of RAM and substantially faster processors and graphics cards. Its stated goal is high quality at 1080p and 60 FPS, not 1440p or 4K. If your monitor runs at a higher resolution, expect to adjust quality or resolution; the listing does not provide higher-resolution targets.
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Storage and operating-system checks
Reserve at least 12 GB of free space as listed by Steam. Updates can require temporary additional space during installation, so keeping more than the exact figure avoids failed downloads. The requirements distinguish Windows 10 x64 from Windows 11 x64; a 32-bit Windows installation does not meet either listed target.
Steam editions and optional DLC
The Steam listing presents the original game by itself and a Deluxe Edition bundle. It also lists separate Miami Supporter Pack, Supporter Pack and Soundtrack DLC items. These are edition or cosmetic extras around the base game; they are not identified as prerequisites for Miami Zero.
| Choice | What the cited listing establishes | Who should consider it |
|---|---|---|
| Base game | Provides the original game ownership needed for the free Miami Zero DLC. | Players who want the lowest-cost permanent PC entry and do not need bundle extras. |
| Deluxe Edition bundle | A bundle is offered on Steam; the cited material does not specify every included item. | Players who want the bundle’s additional content and have confirmed its current contents and price. |
| Miami Supporter Pack | Listed as a separate optional DLC item. | Players who specifically want that supporter content; it is not documented as required for the campaign. |
| Supporter Pack | Listed as a separate optional DLC item. | Players interested in the supporter offering after checking its description. |
| Soundtrack | Listed as a separate soundtrack DLC item. | Players who want the music independently of gameplay access. |
Prices, discounts and bundle contents are live-store data and can change by region and date. Review the current Steam page before checkout. The available evidence does not establish a separate paid Miami Zero package, and it does not establish that buying a Deluxe or supporter bundle changes the campaign itself.
What Miami Zero adds to the campaign
A Miami setting at the infection’s origin
The campaign moves the action to Miami, described in the announcement as the place where the infection began. That setting gives the prequel a different narrative purpose from simply adding another checkpoint: the investigation is tied to understanding how the virus is changing.
New tools and symptoms
Miami Zero introduces new tools and symptoms. The announcement does not provide a complete item list or a detailed medical chart, so treat the phrase as a description of new campaign systems rather than a promise of a specific weapon, diagnosis or cure.
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Campaign-exclusive survivors
Dozens of survivors are exclusive to this campaign. Their inclusion expands the people you process at checkpoints, but the cited material does not specify the exact count, traits or recruitment rules. Expect survivor scenarios designed for Miami Zero rather than a simple reuse of every character from the original campaign.
Medicine research and development
A medicine research-and-development system lets the campaign connect checkpoint decisions with work on treatments. The announcement does not publish a research tree, resource costs or unlock order, so those details should be learned in the game rather than assumed from the base campaign.
Ship repair and the escape route
Ship repair is a new metagame layer. Alongside maintaining the checkpoint, you prepare an escape route, giving the campaign a longer-term objective beyond clearing individual encounters. The source material does not state whether the ship system replaces or supplements every base-game upgrade, so do not buy an edition expecting a particular progression structure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to claim and install the DLC
Steam
- Sign in to the Steam account that owns Quarantine Zone: The Last Check.
- Open the original game’s store or library page and locate the downloadable-content section.
- Select Miami Zero and confirm that the price is shown as free for the eligible base-game account.
- Add the DLC to the account, then start the installation from the game’s library entry.
- After installation, launch the base game and look for the Miami Zero campaign in its campaign or main-menu options.
If the DLC is not shown as free, first verify that you are using the owning account and that the store region matches your account. Do not purchase a similarly named supporter item as a substitute; the supporter packs are separate listings.
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- Sign in to the Xbox account that owns the original game or has the active Game Pass plan providing it.
- Open the current store or Game Pass page for the game on Xbox Series X|S.
- Check the add-ons area for Miami Zero and confirm the entitlement before downloading.
- Install the base game and the DLC, then launch the original game to access the new campaign.
Store menus and entitlement wording can change. If a subscription listing shows the base game but not the add-on, use the listing’s add-on section or Xbox support flow rather than buying an unverified duplicate.
Xbox app on PC
- Open the Xbox app for Windows and sign in with the Microsoft account that owns the game or carries the qualifying Game Pass subscription.
- Search for Quarantine Zone: The Last Check and open its product page.
- Review the included add-ons, select Miami Zero if it is offered, and install both the base game and the campaign.
- Launch from the Xbox app and confirm that Miami Zero appears in the game’s campaign selection.
Common buying and access problems
- “I bought Miami Zero but cannot launch it.” The campaign is DLC, so check that the original game is installed and that both products use the same platform account.
- “The DLC has a price on my screen.” Confirm that you are viewing the official Miami Zero listing, not a supporter pack or soundtrack, and that the account owns the base game. Regional storefront timing can also affect how a free entitlement is displayed.
- “Game Pass shows the game, but the campaign is missing.” Open the current add-on listing and verify that your specific Game Pass plan and region include the DLC. Subscription catalog entries can change.
- “The PC installer says there is not enough space.” Steam lists 12 GB available storage. Free additional space for temporary update files and retry the installation.
- “My PC meets the minimum but performance is poor.” The minimum target is low quality at 1080p and 30-plus FPS, not high settings at 60 FPS. Lower quality settings, close background applications and compare your hardware with the recommended target.
- “I cannot find a console version for my system.” The documented console platform is Xbox Series X|S. No cited announcement establishes a PlayStation, Nintendo or previous-generation Xbox release.
Which purchase route fits you?
Choose the base Steam game
Choose the base game on Steam if you want a permanent PC license and your computer meets the Windows requirements. This is the simplest route when Miami Zero is your reason for returning to the series, because the DLC is free once the original game is owned.
Choose the Deluxe bundle
Choose the Deluxe Edition bundle only after reading its live contents and price. It can make sense when you want the extras grouped with the base game, but the cited information does not show that Deluxe ownership adds a different Miami Zero campaign or improves performance.
Choose Xbox or PC Game Pass
Game Pass is the flexible option if you already subscribe or want to play through the Xbox ecosystem without buying the base game outright. Confirm that the base game and Miami Zero are both available to your plan and region, and remember that access depends on the ongoing subscription and catalog status.
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Supporter packs and the soundtrack are optional listings. They are not documented requirements for Miami Zero, so defer them if your goal is simply to play the campaign. Check each description separately rather than assuming that every bundle contains the same items.
What is not established
The cited announcements do not provide a physical disc or boxed Miami Zero edition, a printed guide, merchandise, detailed bundle inventories, regional pricing, cross-platform entitlement, cross-save support, multiplayer features or performance targets above 1080p. Those details should not be treated as included benefits when choosing an edition.
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