Nier Automata update bug inflates file size to 366GB

What triggered the massive file size increase

Players who downloaded the latest patch for Nier: Automata reported that the installer ballooned from the usual 50GB to an astonishing 366GB. The spike was first noticed on both PC and console platforms within hours of the update being released. Early reports described the file as "unusable" because the size exceeded the capacity of many hard drives and SSDs.

Technical details of the size inflation

The patch in question was intended to address performance issues and add a handful of quality‑of‑life tweaks. Instead, a coding error caused the build process to duplicate large asset bundles multiple times. The result was a package that contained the same texture and audio files over and over, inflating the total size by more than seven times.

Developers confirmed that the erroneous duplication occurred during the compression stage, where a script failed to clear temporary directories before repacking. Because the script ran on every build, each successive patch added another layer of redundant data.

Key factors identified by the investigation

• Improper handling of temporary build files
• Failure to reset compression buffers between iterations
• Missing validation step that would compare final size against a predefined threshold

Square Enix response and investigation

Square Enix issued a brief statement confirming that engineers are "currently investigating" the anomaly. The company emphasized that the issue is isolated to the recent update and does not affect the base game files.

In a follow up post on the official Square Enix website, the studio promised a hotfix within 48 hours. The statement also reassured players that no personal data was compromised and that the bug does not alter gameplay content.

Impact on players and download platforms

The sudden size increase caused several practical problems:

1. Users with limited storage were forced to delete other games or media before attempting the update.
2. Download managers on consoles reported errors because the file exceeded platform‑specific size limits.
3. Steam and PlayStation Network displayed unusually long estimated download times, leading to frustration and support tickets.

Both PlayStation Support and Xbox Support posted temporary advisories, asking players to pause the update until a corrected patch was available.

Possible causes and industry context

While the exact script error is still under review, similar incidents have occurred in other large‑scale releases. For example, a 2022 update for a major open‑world title unintentionally duplicated texture files, leading to a temporary surge in download size. Those cases were resolved by adding a size‑verification step to the build pipeline.

Industry best practices now recommend automated checks that compare the final package size to a known baseline. Such safeguards can catch anomalies before the build is pushed to live servers.

Lessons for developers

• Integrate size validation into continuous integration pipelines.
• Maintain clean temporary directories between build cycles.
• Conduct post‑build audits that flag unexpected growth.

Steps players can take while the issue is resolved

Until Square Enix releases the corrected patch, players can mitigate inconvenience by following these steps:

1. Pause or cancel the current download from your console or PC client.
2. Free up at least 100GB of space to accommodate a potential re‑download of the corrected update.
3. Check the official Steam community page for any announcements or temporary workarounds.
4. Consider reaching out to support channels if the download fails repeatedly.
5. Stay informed by following Square Enix’s social media feeds for the latest status updates.

Most experts expect a hotfix to arrive within the next two days, restoring the update to its intended 50GB footprint. In the meantime, the incident serves as a reminder of the complexity of modern game distribution and the importance of rigorous quality checks.