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few minor blog post fixes

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Joshua Goins 2025-02-17 14:59:59 -05:00
parent c48bcb991f
commit 0750c22ffe
1 changed files with 3 additions and 2 deletions
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content/blog/dolls-nest-demo-saves/index.md
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@ -7,7 +7,7 @@ tags:
- Gaming - Gaming
--- ---
Doll's Nest [released a demo recently](https://store.steampowered.com/app/1839430/Dolls_Nest/), and I'm enjoying playing it (but it's still rough.) I wanted to crack open it's save data just to play around with and what's better than a recently released demo? I haven't touched Unreal Engine at all so I think this might be a good learning experience. Doll's Nest [released a demo recently](https://store.steampowered.com/app/1839430/Dolls_Nest/), and I'm enjoying playing it (but it's still rough.) I wanted to crack open it's save data just to play around with and what's better than a recently released demo? I haven't reverse engineered Unreal Engine games before so I think this might be a good learning experience.
![The beginning area of the demo. It overlooks a giant pit, with several disjointed walkways leading to a giant cable in the middle of the space.](screenshot.webp) ![The beginning area of the demo. It overlooks a giant pit, with several disjointed walkways leading to a giant cable in the middle of the space.](screenshot.webp)
@ -44,6 +44,7 @@ For reference, this is the first 64 bytes of `Slot.sav`:
0000:0010 | 9B 01 00 00 00 00 00 00 8C 03 00 00 00 00 00 00 | ................ 0000:0010 | 9B 01 00 00 00 00 00 00 8C 03 00 00 00 00 00 00 | ................
0000:0020 | 9B 01 00 00 00 00 00 00 8C 03 00 00 00 00 00 00 | ................ 0000:0020 | 9B 01 00 00 00 00 00 00 8C 03 00 00 00 00 00 00 | ................
0000:0030 | 78 9C A5 52 CD 4E C2 40 10 5E A2 18 54 D4 68 3C | x.¥RÍNÂ@.^¢.TÔh< 0000:0030 | 78 9C A5 52 CD 4E C2 40 10 5E A2 18 54 D4 68 3C | x.¥RÍNÂ@.^¢.TÔh<
...
``` ```
The previous work on figuring out this format doesn't completely match up with this version of EasyMultiSave. I have ended up reading it as so: The previous work on figuring out this format doesn't completely match up with this version of EasyMultiSave. I have ended up reading it as so:
@ -71,7 +72,7 @@ OODLE ERROR : OodleLZ_Decompress: data is either corrupted, not a valid Oodle st
_(If you look at compressed data streams regularly, you probably already know what the problem is 😅)_ _(If you look at compressed data streams regularly, you probably already know what the problem is 😅)_
OK, let's take a look at the compressed data like I probably _should've_ done in the first place. (In the snippet above, that's the last line.) Almost immediately we see two magic bytes in every file: `78 9C`. That's a zlib header! Once we fix that mistake and decode using zlib, we can get deserialized data. OK, let's take a look at the compressed data like I probably _should've_ done in the first place. (In the snippet above, it begins on the last line.) Almost immediately we see two magic bytes in every file: `78 9C`. That's a zlib header! Once we fix that mistake and decode using zlib, we can get deserialized data.
![Screenshot of Okteta showing the decoded save game.](output.webp) ![Screenshot of Okteta showing the decoded save game.](output.webp)