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  3. /Which games and engines does Save Editor support?

Which games and engines does Save Editor support?

Which game engines and save formats you can edit right now, which ones are recognized with a parser on the way, and what to do when your format isn't listed yet.

One of the most common questions is simply: "Will it work with my game?" This is the honest, up-to-date answer — what you can edit right now, what we already recognize and are building support for, and what to do if your format isn't on the list yet.

Editable right now

These formats load straight into the editor — you can search, change values, and download a working save:

  • Ren'Py (.save) — the visual-novel engine. One of the most popular formats on the site. See also our guide on Ren'Py signing, which you'll need after editing.
  • RPG Maker (.rpgsave and friends) — MV / MZ, plus older VX / XP projects.
  • TyranoScript / TyranoBuilder (.sav) — another widely used visual-novel engine.
  • Wolf RPG Editor (.sav) — ウディタ, the Japanese engine behind a large catalogue of doujin and commercially localised RPGs. Slots and the System.sav beside them are recognized by what is inside them, so a save opens even when it arrives renamed. Worth knowing before you open one: Wolf stores its variables by number, not by name — the names live in the game's own project files, which are not part of the save, so you will see entries like var7 rather than "HP". Change a value in the game, save again, and compare the two files. Everything you do not touch is written back byte for byte and the checksum is recalculated for you.
    Two kinds of Wolf save do not open. Games that set a protection key encrypt their saves with it, and that key is not in the file — we recognize those and say so, rather than calling them an unknown format, but nobody can edit them from the save alone. Saves from the newest engine builds are held back too: their layout adds fields we cannot place from the few examples we have, and a wrong guess would write a broken save rather than fail to read one.
  • Naninovel — Unity-based visual novels, stored as JSON.
  • Easy Save 3 (.es3), the save asset many Unity games use. Plain, compressed and encrypted saves all open. An encrypted one is tried with every password published for its game, and when none of them fits, the editor asks you for it. The edited save is encrypted again with the same password, so the game reads it as its own.
  • Twine — interactive-fiction stories saved inside HTML.
  • Unreal Engine (GVAS .sav) — the standard Unreal save container.
  • QSP — Quest Soft Player — text-quest engine, detected automatically by its signature.
  • Plain JSON (.json) — and, thanks to universal JSON support, any save that's really JSON under the hood, whatever its extension. A huge number of indie and HTML5 games fall into this bucket.
  • Gzipped JSON — a JSON save the game compressed with gzip, as Shattered Pixel Dungeon, Bitburner and some Unity games do. It opens like any JSON save, and what you download is gzipped again, so the game reads it as before.

If your game stores progress as JSON (a lot of web and Unity games do), there's a good chance it just works — even if the engine isn't named above.

Recognized — parser on the way

Sometimes you'll upload a file and get a "we recognize this format, but editing isn't ready yet" message instead of the editor. That's deliberate, and it's good news: it means we detected the format, kept your file for analysis, and added a data point that helps us prioritize what to build next.

Formats currently in this recognized-but-not-ready state include:

  • TADS — classic interactive-fiction engine
  • ZenGin / Gothic — the Gothic series save format
  • Larian LSF — Divinity: Original Sin 2 and Baldur's Gate 3
  • Godot (encrypted resources) — needs the game encryption key
  • GTA V (PS-style encrypted saves) — needs a key
  • Unity binary saves
  • A few unlabeled binary containers we're still reverse-engineering
About encrypted formats: some saves (Godot, GTA V and similar) are encrypted with a per-game key that is not in the file. We can detect them, and editing one needs that key from you. Easy Save 3 already works this way; the rest are on the roadmap.

On our radar (not detected yet)

RTON (Plants vs. Zombies 2). We know about it; we just need more samples to build reliable detection.

My format isn't listed — what do I do?

Upload it anyway. Two things happen:

  1. If it's secretly JSON (or one of the engines above), it'll likely just open.
  2. If it's a recognized-but-not-ready format, your upload is logged and the file is retained for analysis — which is exactly how we decide what to build next. The formats people upload most get parsers first.

So uploading an unsupported save isn't a dead end — it's a vote.

Warning:One rule, always: before editing anything, back up your original save file — for example, rename it backup_<filename>. The editor is non-destructive (it works on a copy), but a backup means you can always get back to a known-good state.

Ready to edit a save?

Drop your file on the homepage — no install, no signup to try.

Open the editorTry the demo

Keep reading

  • Ren'Py saves won't load after editing? Signing, explained

    Why Ren'Py rejects an edited save, and how to fix it with a manual repack or automatic signing.

  • Get your unedited save back with Download Original

    How to restore the exact file you uploaded, how it differs from the normal download, and who can use it.

Save Editor Online

Open a save file in the browser, change what the game tracks, and take it back.

Upload a save
Try the demoRen’Py repackGuidesFAQContactHall of Fame
JSON.json
Naninovel.nson
Pokémon Gen 3.sav .srm .sa1
QSP.sav
Ren'Py.save
RPG Maker.rpgsave .rmmzsave .rvdata2 .rvdata .rxdata
Twine.save .savesbundle .txt
TyranoScript.sav
Unity.dat .data .sav .json .es3
Unreal Engine.sav

© 2026 Save Editor Online

Game and engine names are trademarks of their owners. Save Editor Online is not affiliated with them.

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Bringing saves back is not ready yet

Thanks, your click counts: it tells us to build this next. Novice keeps your 50 most recent saves, so the next ones are not pushed out.

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Novice Archivist

  • Upload files up to 20 MB (free: 10 MB)
  • No upload cooldown — upload back to back
  • Ren'Py auto-sign: the game never asks about an edited save
  • Keep your 50 most recent saves · pin 5 for good
  • Your name in the Hall of Fame
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  • Download any past version of your saves
  • Keep your 100 most recent saves · pin 10 for good
  • A name card in the Hall of Fame
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Master Archivist

  • Everything in Skilled
  • Keep your 200 most recent saves · pin 20 for good
  • Behind the scenes — how the service is built and run
  • Your own card at the top of the Hall of Fame
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Prices per month, plus VAT. Maximum file size is 20 MB on every paid plan and 10 MB on the free tier.

Your game will ask about this save every time

This save was written by Ren'Py 8.1 or newer, which signs every save with a key that lives on your computer, and editing it breaks that signature. We removed the broken one, so the file loads: the game asks whether you trust it, you say yes, and you play. It just asks again on every load, because nothing in the file proves it came from you.

To stop the question, sign it. It's free and takes about a minute: the Repack page asks for the file you just downloaded and your security_keys.txt, and hands back a save the game loads without asking anything.

Editing Ren'Py saves often? Any paid tier stores the key once and signs every download for you: no Repack page, and the game never asks.

Sign it for free

Where do I find security_keys.txt? · Signing works without an account.

You have this file already

Keep your saves with you

Signing in is free. Your file uploads either way.

  • 10 saves instead of 5
  • Your saves on any device, not only this browser
  • The save you already uploaded comes with you

Joining Patreon is free and needs no pledge.