Hollow Knight: Analyze Save Completion Online Tool

Analyze your saves. See precisely what you missed and where. See Completion %, locations (also Shards/Fragments), costs. I even designed spoiler-free hints based on your progress, if you are completely lost.

General info

Hollow Knight doesn't have a game completion list. There is no way to easily check what specific things someone forgot to do for full 112% Game Completion. So I wrote a tool for that. It can also give an optional hint if stuck, based on the in-game progress.

Inspirations: discussions on the forum, KayDeeTee and bloodorca's Save Editors, programming learning, Elderbug.

If this is your first playthrough and you feel completely lost, I will give you a very slight optional hint which should point you in the right direction (no major spoilers). Hidden by default.

I will show you all individual Mask Shards and Vessel Fragments as well as locations and costs of every item on the list. Locations/costs are hidden by default if you don't want spoilers.

How to use

• Use bloodorca's amazing Online Save File Editor to decode your Hollow Knight user*.dat save file into text.

• CTRL+A (Select All) inside the text box after decoding the save. CTRL+C (Copy) to copy the whole contents inside the text box. Be careful not to copy the whole webpage! Only the text inside the text box.

• CTRL+V (Paste) the text data inside the text box on the Tool's webpage.

• Click "Analyze Text". If the copy-pasted data was correct, you will see your Completion %, Play Time, and a whole list of things you have done (✅) or not yet done (❌).

Hollow Knight Save game locations

Windows

%USERPROFILE%\AppData\LocalLow\Team Cherry\Hollow Knight\

Linux

~/.config/unity3d/Team Cherry/Hollow Knight/

macOS

~/Library/Application Support/unity.Team Cherry.Hollow Knight/

Filenames

user.dat* — main save file. Where * is a number between 1 and 4, and it is the appropriate save slot inside the game. user.dat.bakX* — backup save files. Where X is a number in ascending order meaning how many backups were made during the whole playthrough of that save. The higher the number, the more recent the backup. There are usually 3 save backups at one time, older backups are deleted.

Support and feedback

All feedback/problems/wrong data are appreciated. Feel free to write them in the Steam Discussion thread for the Tool.

Currently only things that are necessary for Game Completion % achievements are shown. The tool doesn't show all the optional things, bosses, challenges, relics found, geo caches opened etc. that are not required for completion %.

If you like the tool and want it developed further with more functions, consider supporting on PayPal.

Version History

• 2020-09-13: — changed theme to a more Hollow k[N]ight atmosphere. — fixed switched Dash Slash and Great Slash check.
• 2020-09-06: — Introduced: Optional Hints - if this is your first playthrough and you feel completely lost, analyze your save, and I will give you a small hint where you can investigate next (based on your progress in the game). Inspired by Elderbug (and people on the forums asking where to go next). — Introduced: Show/Hide Locations and Hints - Now hidden by default if you don't like spoilers! Just click the checkboxes to instantly toggle their visibility.
• 2020-09-02: — Gruz Mother and Brooding Mawlek check should work now even for extremely rare cases — Showing all Completion Data by default on page load
• 2020-08-30: — Added all locations and costs of all individual items — Fixed Watcher Knights incorrect data check, should be okay now — Showing total percentage of all categories (not calculated) — Cosmetic improvements
• 2020-08-29: — All individual 16 Mask Shards and 9 Vessel Fragments as well as their locations are shown now as requested — Fixed Gruz Mother incorrect data check, should be okay now — Added save's Play Time

Using

• JavaScript
• HTML5/CSS
• JSON
• Fontello
• Google Fonts

Contact

Written and created by ReznoRMichael