Dreamcast Save Editing

Discussion of topics related to licensed games, software hacking/modification, prototypes, and development kits belongs here. Includes topics related to emulating the Dreamcast console on your computer or on another gaming console. Discussion of Reicast should go in the Official Reicast Forum.
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Play2win80
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Dreamcast Save Editing

Post by Play2win80 » Tue Jan 01, 2019 1:14 pm

Hello! I need some help editing a save for Dreamcast’s Timestalkers- I’m trying to “hack” out some items and unlock other things if possible.

I have the save copied to a hard drive but beyond that, I know very little about programming or hex editing, so I’d be willing to compensate someone if they could help with this.

Please let me know if you have any questions, and thank you in advance for any help!
mrneo240
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Re: Dreamcast Save Editing

Post by mrneo240 » Sun Feb 17, 2019 10:25 pm

Make a bunch of saves with slightly different stuff. Then compare and narrow down.

Or look up data fuzzing and use that.
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Re: Dreamcast Save Editing

Post by Play2win80 » Sun Feb 17, 2019 11:04 pm

I appreciate the reply but I probably don’t have a technical skills to pull either of those off. I’d be willing to hire someone to do it though. Also, someone did find some game shark CDX codes in another forum that would be a good starting point
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Re: Dreamcast Save Editing

Post by RyoDC » Thu Apr 11, 2019 12:55 pm

Actually you touched a very complicated topic.

What you're asking is the crosssection of knowledge in different domains - reverse engineering (mainly), programming, well, yep ,that's it.

I suggest you to start from basic things, learn some basic programming, some basic Computer science, and slowly get into theme.

In general, there' differnet methodics to do this, games use complex serialization protocols, people use software like IDA pro or other debugger\dissasembler tool to get inside the software and learn what it's doing exactly.

The simplest approach is mentioned by @mrneo240, you just change something in a game, modify it's state by some infitestimal small change, and then compare the resulting save files. That's how you learn what's changed and where. But it's long and error prone job.

I suggest you to start googling some basic tutorials on programming and dissasembling, and by that start to slowly dive into the topic. Don't overload, just step-by-step. It's an interesting way to learn things actually, my interest was the same when I was 11 or 13 of age.

I wish you luck!
How do I try to build a Dreamcast toolchain:
Image
Play2win80
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Re: Dreamcast Save Editing

Post by Play2win80 » Thu Apr 11, 2019 2:28 pm

I appreciate the reply! Although I would love to acquire this knowledge, working 15 hour workdays really limits the time I have to learn new skills such as these.

My hope is that I could basically hire someone who already has those knowledge and skills to complete this one time project. We already have a list of codes which appears to trigger certain item changes in the game.

For working codes or a hack which provides the missing items, I could pay a flat fee or hourly fee depending on the agreement.

Take care.
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Re: Dreamcast Save Editing

Post by mrneo240 » Mon Apr 15, 2019 9:53 am

for what it would cost to hire me, you'd be better off doing it yourself.
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Re: Dreamcast Save Editing

Post by Play2win80 » Mon Apr 15, 2019 10:43 am

About how much would it cost, ballpark? Thanks
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Re: Dreamcast Save Editing

Post by mrneo240 » Tue Apr 16, 2019 7:08 am

$30/hr
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Re: Dreamcast Save Editing

Post by Play2win80 » Tue Apr 16, 2019 8:47 am

Ok. Do you have a ballpark estimate of how many hours would be involved? Thank you.
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Re: Dreamcast Save Editing

Post by Play2win80 » Mon May 27, 2019 11:37 am

PM sent
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Re: Dreamcast Save Editing

Post by Play2win80 » Mon Sep 23, 2019 5:48 pm

mrneo240 wrote:
Tue Apr 16, 2019 7:08 am
$30/hr
Hi- Per below, I think we're good with moving forward. When is the soonest you can start? I can send you the save and explain exactly what we need modified. Thank you.
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