I used 3ds-save-tool (disa-extract.py) to extract the files out of the container file.
I also threw together the attached gm9 script to make it easier to repeatedly get the file off of the device.
Edit: Yeah, it's true that pld.dat also has the data, and the timestamp values in there are...
It's hard to tell from the pictures, but things that I'd look for are "SDHD" compatibility, otherwise it might only support up to 2GB SD cards. Also, if you have a DSi or 3DS and you want to use it there, only some of these might work.
Take a look at the comparison chart here...
Yeah the "open world" part of all of these games really annoys me. The art style doesn't bother me at all, and in fact parts of the world look really nice and definitely fun to explore.
The thing is, I don't have time for more than 1-2 open world games a year, and I doubt this will be one of them.
Prime Remastered is way more than just a remaster. It's really good. My only complaint so far is that there are little wall mirrors in the Chozo Ruins that used to show Samus's reflection, and now they only show the room behind her. I guess Samus is a vampire now?
This is amazing work. I can understand why the project is on hold, but being able to install this alongside the full picross e 3DS collection is extremely satisfying. I'm working my way through them all now. :)
So, I think I figured it out, or at least I'm getting very close. But it's bizarre, and I'm hoping someone can help me make sense of it.
Basically, here are the steps for interpeting PlayHistory.dat's timestamp values:
Read the 4 byte value as an Integer¹
Multiply it by 3.75
Add it to...