Save Editing

This guide will explain how you can edit your save files.

TLDR

Open your save file in C:\Users\[Your user name]\AppData\Local\touhou_luna_nights in a text editor. Each of the three save slots is a different file, game0.sav, game1.sav and game2.sav respectively.

Each line of your save file is a variable encoded in base64. Check out FearJudge's guide for a complete list of variables: https://pastebin.com/pZXsY6w0

Alternatively, use Firebingo's save editor[github.com].

If you want a more verbose explanation about how to edit your save file, read on.

Introduction

In this guide I will explain how you can edit your save files to change things like your character's EXP, max HP/MP or spawn location.

In Windows, your save files are located in C:\Users\[Your user name]\AppData\Local\touhou_luna_nights. (You can copy-paste

%userprofile%\AppData\Local\touhou_luna_nights

into the address bar of any Windows Explorer window to get there.) The files are named game0.sav, game1.sav and game2.sav for the first, second and third save slot, respectively.

To edit save files you will need a text editor – yes you read that correctly, not a hex editor (a hex editor would just make things more complicated). I used Notepad++ for all of my editing, but I also tried the standard Windows Editor and WordPad and they both seem to work just fine. You should absolutely make your text editor display line numbers if it doesn't do that by default.

The only other tool you need is a Base64 decoder/encoder. I used the following free online tool:
https://www.base64decode.org
https://www.base64encode.org

Back up Your Files

Before you make any changes, back up your save files in case anything goes wrong!

Editing Basics

Each line in the save file contains a specific value. These values are encoded in Base64, so you need the decoder in order to be able to read them.

Copy-paste any line from the file into the decoder[www.base64decode.org] tool, for example line 111 of your save file. This is your current amount of purple gems, in my case "MjA1". Click DECODE. The decoded value would be "205". To change this value, go to the encoder[www.base64encode.org] tool and enter the new amount of purple gems you want, then click ENCODE.

I'm greedy and I want 9999 gems. The encoded value for that would be "OTk5OQ==". Copy-paste the new encoded value back into your file and save. That is all there is to it.

You can edit save files while in the main menu of the game (the game doesn't have to be closed). Changes will take effect when you load a save slot.

Variable Locations

Stat enhancers

The following lines contain the values for items that permanently increase your stats.

Line 105: Extra HP (10 additional max HP per unit)
Line 106: Extra MP (10 additional max MP per unit)
Line 109: Extra daggers (3 additional max daggers per unit)
Line 110: Extra time (15 additional max time per unit)

Experience/level

Your character's level depends on your current experience. FearJudge's pastebin file[pastebin.com] contains a chart with EXP thresholds for each level (see [&ATT_1] ).

Line 107: Experience

Skill Tree

Your current abilities (e.g. Double Jump). It's a number from 0–5. The number you set will activate the respective power-up and all the previous ones. For example, setting it to 2 will give you the Slide Knife and the Double Jump.

Line 118: Skill Tree

Ability	Number	Encoded Number
Nothing	0	MA==
Slide Knife	1	MQ==
Double Jump	2	Mg==
Grip Knives	3	Mw==
Screw Knives	4	NA==
Dash	5	NQ==

Revealing the Map

For each tile of the map, a line with a boolean value is stored in the save file, with true/false (1/0) indicating whether you have discovered it. So if the value is 1, the tile will show up on your map, if it is 0, then it won't.

As of v1.0.0.5, the full map has 250-ish actual rooms, although I believe the game stores a boolean value for each tile on the map grid, regardless of whether a room exists in that tile. So the amount of tiles could be within a range of roughly 660 to 750.

This is what the remainder of the save file is for (I think). You can see that, starting at line 255, each line displays either "MA==" (0, not discovered) or "MQ==" (1, discovered). If you replace all the "MA=="s from line 255 to 1000 with "MQ=="s then the full map will be available in the game (including future rooms that might be added to a certain tile).

Additional Offsets

FearJudge did an amazing job mapping out the entire save file, so for anything you cannot find in this guide, check out this pastebin file: https://pastebin.com/pZXsY6w0

Save Editor

Don't want to edit your saves in a text editor? Check out Firebingo's save editor[github.com], which allows you to edit the most important things of your save file (Skills, Gems, EXP etc.) in a GUI.

[Curu]

have a suggestion for a app to decote the files?

[SafetySkull]

instructions unclear, tried to make a joke and failed, have to repeat Clown College

[Garwinium]

instructions unclear, i got 20 error messages and my default search engine got set to bing

[D҉us̷k͠ S̡hλde]

Instructions unclear, attempts to open save file resulted in L4D2 being launched

[LVL99]

This is really impressive, thanks a lot. I added the Abilities variable to the guide and updated the link to your pastebin file.

[FearJudge]

I waited on this for a while to let people play the update.

Here's pretty much the completed save file explained line by line as well as other stuff.
OP, if you want to update or add anything on your guide from it, feel free.
https://pastebin.com/pZXsY6w0

For everyone: please use it responsibly.

[LVL99]

Thanks a lot to both of you. I started looking into more lines of the save file, but eventually lost motivation.

FearJudge, your list is amazing, so I linked it directly in the guide. Good job!

By the way, line 104 seems to be Sakuya's orientation when walking into a save point (-1 for left, 1 for right). However, this doesn't seem to have any effect on loaded games, as she always looks to the right at the beginning.

[FearJudge]

I've done some sleuthing after seeing this post, but I kind of forgot about it for awhile. Here's a pastebin of all the lines I found use for:
https://pastebin.com/LNNdxSNa
And a pastebin of a savefile that is as close to a proper fresh game start as I could make one:
https://pastebin.com/fMnPiFvu
Hope this helps.

[Mechaxk]

As of v1.0.0.5 these are the lines for the following that I've found:

91 - 95 Keys:
91 - OTA= for Stage 1 key
92 - OTE= for Stage 2 key
93 - OTI= for Stage 3 key
94 - OTM= for Stage 4 key
95 - OTQ= for Stage 5 key

118 and 120 Cards and equipment:
118 is equipment. 1 for slide. 2 for double jump. 3 for the stand-on knives. 4 for screw knives.
120 is Cards. I don't know the exact values, but 10(MTA=) will give you all + 0 of each card in the shop (It'll say 0, but you can use it. once)

131 - 135 Items:
I think just change them to however many you want. Didn't map which is which.

Keep in mind that they won't show up on the item map thing. Those are on different lines.

[Mechaxk]

Thanks for this, now a sort of NG+ is possible. If I can just find the values for items, maybe then I can do a real NG+