01 // ON YOUR MACHINE
Your files stay put
There is no account and no upload of your save. Reference data lives inside the app, and any Steam or GOG save you open is read strictly on that computer.
Independent studio · 2026
Building tools for the edge of the map.
Subspace Foundry is an independent studio making games, tools, and companion software. Our first release is Atlas Field Kit, a free unofficial No Man's Sky companion app and Windows save editor that keeps its work on your machine. Games and other tools will follow from the same shop.
On your machine
Backup before a write
Browser and Windows
How we build
Local-first companion software rules
These are the engineering rules behind Atlas Field Kit. Any later studio tool that reads or writes a player's own files will follow them too.
02 // BACKUP FIRST
A backup comes before a write
Edits wait on the screen where you made them. Save all stores a local backup of the save pair, then writes the file. Restore puts that backup back. After a write, reload that slot from the game's save list.
03 // TWO WAYS IN
A browser, and a Windows app
The browser edition works right away on a second screen: crafting recipes, the encyclopedia and survival guides, portal glyphs, and expeditions. Watching the save folder, writing saves, and Windows notifications ship with the Windows app.
The studio catalogue
Shipping now from Subspace Foundry
Atlas Field Kit is our first release. A later game or tool will be listed here once it has a name and something real you can inspect.
Now shipping · version 1.0.4
Atlas Field Kit
Free No Man's Sky companion app and local Windows save editor.
It packs 3,538 crafting, refining, and cooking recipes across 4,257 items, 145 survival guides and encyclopedia topics, a 16-glyph portal coordinate translator, and all 23 community expeditions in both Explorer and Commander themes. Open a local Steam or GOG save on Windows 10 or 11 to add items, move stacks, unlock slots, configure supercharged slots, edit starships and multi-tools, tune frigate stats and traits, and update settlement perks, with an automatic backup before every write.
Crafting
Encyclopedia
Portals
Expeditions
Inventory
Settlement
Fleet
Not affiliated with Hello Games. No Man's Sky and the names in the game are theirs. Subspace Foundry built this companion.
What comes next
More software, when it is ready to show
Subspace Foundry is at the start. The shop will ship games, general tools, and more companion software. Until a project has a name and something you can look at, Atlas Field Kit is the work you can use.
Contact
Write to the studio
Questions, bug reports, and ideas go to the studio account on X. That is the channel we answer.
Subspace Foundry
@SubspaceFoundry