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Game Hub / Save Reference

No Man’s Sky Save Files & Tools

No Man's Sky PC save location, backup, file-format, launcher, cloud-sync, and compatibility reference. This Game Hub documents save-file facts without implying that a game-specific Save Editor is available.

PC

01 / Overview

Save reference at a glance.

Game Hubs separate documented save-file facts from actual Tool support. A Game Hub can be useful even when no custom editor exists.

Developer
Hello Games
Publisher
Hello Games
Platforms
PC
Save extensions
.hg

No Man’s Sky has evolved over many years, so older profile directories can contain naming conventions that differ from current saves. That makes destructive cleanup risky. Archive the whole NMS directory before renaming or moving anything, and keep Microsoft Store WGS data separate from normal desktop .hg files. A future game-specific tool should identify the exact generation and container before writing; Phase 23 only documents the storage and backup boundaries.

For this PC reference, the documented storage is Windows: %APPDATA%HelloGamesNMS
Microsoft Store: %LOCALAPPDATA%PackagesHelloGames.NoMansSky_bs190hzg1sesySystemAppDatawgs | macOS: $HOME/Library/Application Support/HelloGames/NMS/ | Linux / Steam Play: Steam Play: <SteamLibrary-folder>/steamapps/compatdata/275850/pfx/. The known file or folder pattern is save*.hg
mf_save*.hg (current/metadata family; older installs may contain storage*.hg names). No Man's Sky uses profile-scoped .hg save records. The Microsoft Store/Xbox app build uses WGS instead of the same visible Steam/GOG-style files.

Backup guidance: Copy the entire NMS profile directory, including metadata companions, before editing or migrating. For Microsoft Store, preserve the WGS container separately. Storefront cloud support can synchronize the same profile. Cross-platform/cross-save features should be treated as service workflows rather than proof that arbitrary local files are byte-compatible. Launcher and cloud context matters because Desktop storefront files and Microsoft WGS containers are different migration surfaces. Older installations can also contain legacy storage*.hg naming.

Compatibility and recovery should stay conservative. Older 2016/2017 file naming and current save naming can differ. Do not rename historical .hg files blindly without retaining the originals. If the expected progress is not visible, If an older save is not listed, first preserve every .hg record and compare modification times. PCGamingWiki documents historical storage-to-save rename cases, but any rename attempt should be reversible. SaveEditor.com only labels a game-specific editor as available when a separate linked Tool has a verified operational runtime; this reference page by itself is not an editor claim.

Compatibility note

Older 2016/2017 file naming and current save naming can differ. Do not rename historical .hg files blindly without retaining the originals.

02 / Save locations

Where the save files are stored.

Paths are displayed only when they have been explicitly documented for this Game Hub. Environment variables and launcher-specific differences should remain visible instead of being silently normalized.

Windows
%APPDATA%HelloGamesNMS
Microsoft Store: %LOCALAPPDATA%PackagesHelloGames.NoMansSky_bs190hzg1sesySystemAppDatawgs
macOS
$HOME/Library/Application Support/HelloGames/NMS/
Linux
Steam Play: <SteamLibrary-folder>/steamapps/compatdata/275850/pfx/

Launcher / edition differences

Desktop storefront files and Microsoft WGS containers are different migration surfaces. Older installations can also contain legacy storage*.hg naming.

03 / File format

Files, extensions, and format notes.

This section documents only known file names and structures. Format notes can later connect directly to SaveEditor.com parsers, checksum engines, and converters.

Extensions

.hg

File names / patterns

  • save*.hg
  • mf_save*.hg (current/metadata family
  • older installs may contain storage*.hg names)

Format notes

No Man's Sky uses profile-scoped .hg save records. The Microsoft Store/Xbox app build uses WGS instead of the same visible Steam/GOG-style files.

Launchers / stores

Steam / GOG Galaxy / Microsoft Store / Xbox app

Cloud save notes

Storefront cloud support can synchronize the same profile. Cross-platform/cross-save features should be treated as service workflows rather than proof that arbitrary local files are byte-compatible.

04 / Tools

Actual linked Tool support.

No verified game-specific Save Editor is currently listed. This Game Hub remains useful for save locations, file details, backup guidance, and other linked utilities.

No active game-specific Tool is currently listed.

Planned and deprecated Tool records are intentionally excluded. The save-reference information on this page remains separate from Tool availability.

Browse all tools

05 / Backup

Protect the original before editing.

Save editing should be reversible. Keep an untouched copy outside the active save directory before replacing, converting, repairing, or modifying a save.

  1. 01
    Close the game.

    Avoid modifying a save while the game or launcher may still be writing to it.

  2. 02
    Copy the entire relevant save set.

    Some games use multiple files, profile folders, metadata, or companion files rather than one isolated save.

  3. 03
    Store the backup elsewhere.

    Use a separate folder or archive so cloud sync or the game cannot overwrite the untouched backup.

  4. 04
    Edit a copy, then validate.

    Follow the exact compatibility and processing notes on the Tool page before replacing the active save.

Game-specific backup note

Copy the entire NMS profile directory, including metadata companions, before editing or migrating. For Microsoft Store, preserve the WGS container separately.

06 / Troubleshooting

When a save is missing or rejected.

Start with reversible checks. Do not delete or overwrite the only copy while diagnosing a path, cloud-sync, version, or format problem.

Game-specific notes

If an older save is not listed, first preserve every .hg record and compare modification times. PCGamingWiki documents historical storage-to-save rename cases, but any rename attempt should be reversible.

A

Confirm the correct profile.

Games, launchers, and operating systems may keep separate save folders for different users, editions, or profiles.

B

Check cloud synchronization.

A cloud service can restore an older file or overwrite a local change. Preserve both copies before resolving a conflict.

C

Check Tool compatibility.

A matching filename does not prove a matching format. Verify platform, game version, extension, and Tool support state.

D

Restore the untouched backup.

If the game rejects a modified save, return to the original backup before attempting another change.

07 / FAQ

No Man’s Sky save-file questions.

Answers are generated only from visible Game Hub metadata and actual linked Tool states, plus universal backup guidance.

Where are No Man’s Sky save files stored?

The currently documented save locations are listed in the Save locations section above. Use the location that matches your platform or environment.

What save-file extension does No Man’s Sky use?

The extensions currently documented on this page are: .hg.

Does SaveEditor.com have a verified No Man’s Sky Save Editor?

No verified game-specific Save Editor is currently listed. This Game Hub remains useful for save locations, file details, backup guidance, and other linked utilities.

Should I back up the save before using a Tool?

Yes. Keep an untouched copy outside the active save directory before modifying or converting the file. Some games use multiple companion files, so back up the relevant save folder when in doubt.

Are there cloud-save considerations for No Man’s Sky?

Storefront cloud support can synchronize the same profile. Cross-platform/cross-save features should be treated as service workflows rather than proof that arbitrary local files are byte-compatible.

Editorial review

Game-specific metadata on this hub was last reviewed on 2026-08-08. Individual Tool pages maintain their own verification dates and compatibility notes.

Verification notes

Windows/macOS/Microsoft Store/Steam Play locations and historical .hg naming notes were reviewed against current PCGamingWiki coverage.

Reference sources
  1. Reference 1 - www.pcgamingwiki.com

Related guides

Continue with reviewed save-file guidance.

Only reviewed, index-ready Guides explicitly related to this Game Hub are surfaced here.