Wondering whether a new game will fit on your PC, PS5, Xbox or Nintendo Switch? This guide explains how to estimate the real storage commitment, allowing for the base install, free-space buffer, day-one patch, downloadable content and optional texture packs before you start a large download.
Overview
A game’s advertised download size is useful, but it is not always the same as the space you should have available. Store pages may show a compressed download, an estimated install size, or a requirement that can change after launch. A preload can also use a different amount of space from the final installed game, while updates may need temporary room during installation.
For practical planning, treat the listed size as a starting point rather than a guarantee. The safest question is not simply “How large is this game?” but “How much free space should I reserve before installing it?” That figure should cover:
- the initial download or preload;
- the installed game after files are unpacked;
- any confirmed or likely day-one patch;
- optional high-resolution texture packs and language packs;
- planned expansions or regularly updated content; and
- temporary working space required by the platform or launcher.
Storage planning matters most for digital releases, live-service games and large AAA games, but it also helps when deciding whether a physical copy is worthwhile. A disc or cartridge may reduce the initial download in some cases, yet updates and required data can still consume internal storage. Our guide to physical versus digital games in the UK covers the wider ownership trade-offs.
How to estimate the storage you need
Use this simple planning formula:
Recommended free space = listed install size + expected updates and add-ons + safety buffer
Start with the most recent figure shown on the official store page, launcher or developer support page. If different pages disagree, use the larger credible figure until the publisher clarifies the requirement. Then add space for content you know you will install, such as a multiplayer component, campaign files, language packs or a high-resolution texture option.
Next, allow a buffer. A modest game may need only a small cushion, while a large release or heavily updated game benefits from a more generous one. The buffer is not an extra purchase requirement; it is protection against failed downloads, temporary installation files and an update that arrives larger than expected.
Do not confuse download size with installed size. A compressed download can expand when installed, and an update may replace or rebuild files rather than simply adding its patch size to the total. For that reason, a patch labelled as a certain number of gigabytes does not always increase the permanent installation by that exact amount.
Before launch, check the game’s store listing and the publisher’s update notes. The UK guide to release times, preloads and early access can also help you plan when to begin the download, especially if you want to preload without leaving your drive full for another game.
Inputs and assumptions
| Input | What to check | Why it matters |
|---|---|---|
| Base install size | Official store or launcher listing | Provides the starting point for the calculation |
| Free-space requirement | Whether the platform requests more room than the final size | Some installations need working space during unpacking or copying |
| Day-one patch | Patch notes, preload reports or launch communications | Release-day updates can change the initial storage plan |
| Optional files | Texture packs, language packs, campaign modes and multiplayer components | You may not need every available file |
| Future updates | Whether the game is live-service or regularly expanded | The installation can grow after launch |
| Drive location | Internal SSD, expansion storage or external drive | Not every platform allows every game to run from every type of drive |
Platform rules deserve particular attention. On PC, the launcher may install files to one drive while using another location for temporary data. On consoles, an external drive may be suitable for storing games but not necessarily for playing every current-generation title directly from it. Nintendo Switch storage planning can also depend on whether a release is physical, digital or partly downloaded. Always check the current platform guidance and the game’s own listing rather than assuming that a drive with enough capacity is automatically compatible.
Also leave room for your existing library and saved captures. A drive that has exactly enough space for one installation may become inconvenient if the platform needs room for an update or if automatic screenshots and video clips are enabled.
Worked examples
Example one: a compact indie game. Imagine a new indie game listed at 12 GB. You want the base game only, with no optional texture pack, and the developer has not announced a large launch update. A sensible plan is to reserve the 12 GB starting figure plus a buffer for installation and future patches. If your drive has only a few gigabytes free, clear space first rather than beginning the download and hoping the launcher manages the remainder.
Example two: a large single-player release. Suppose a game is listed at 95 GB and offers a separate high-resolution texture pack. If you do not have a 4K display or do not want the optional files, exclude that pack from your calculation. Reserve space for the base installation, the confirmed launch update if one is available, and a larger buffer than you would use for a small game. This gives you room to install without immediately needing to remove another title.
Example three: a live-service game. A multiplayer game may begin at 70 GB but receive seasonal content, maps and revised assets. Its current install size is more useful than an old review or launch announcement. Check whether the platform lets you remove unused campaign, language or texture files, then keep additional headroom for recurring patches. If the game is central to your regular play, calculate against the likely medium-term footprint rather than today’s minimum.
These are planning examples, not fixed platform requirements. Replace the assumed figures with the latest listing for the exact edition and platform. Different editions can include different content, and a PC installation may vary with language, graphics options or launcher configuration.
When to recalculate
Revisit your estimate whenever one of the inputs changes. The most useful checkpoints are:
- when preloads open and the launcher displays a final download size;
- when the game receives its day-one patch or first major update;
- when you buy an expansion, season pass or upgraded edition;
- when optional texture, language or accessibility files are added;
- when moving the installation between internal and external storage; and
- before reinstalling after a long break.
Use this quick checklist before downloading a new game:
- Open the current store or launcher page for your exact platform and edition.
- Record the listed download or install size.
- Look for a separate free-space requirement or installation warning.
- Decide which optional packs and modes you actually need.
- Add room for the day-one patch, future updates and a practical buffer.
- Confirm that the chosen drive can install and run the game.
- Move or uninstall less-played games only after checking save synchronisation and capture files.
Storage figures are moving targets, so this article is most useful when paired with the latest official listing and patch notes. Recalculate before a major release, expansion or SSD upgrade, and you are far less likely to discover that a promising new game will not fit when download day arrives.
