Yes, I know the requirements but it is hard for me to imagine that a former DX9 game really would require a system which was not even there when the game came out. Has anybody tested if it does run with Windows XP?

Has not one single player tested this?
Here is what the devs said in their forum:

"We don’t officially support Windows XP and have not tested it, so we’re uncertain of the results."

So my question is nit THAT far fetched and it COULD run.

Edit: Apparently some use in the DF Forums has tested it and it does not run (yet):

You might be able to get it to run using the Win2kGaming wrapper DLL's!

I use those to run more modern games on my Win2k system.

(Haven't tried with GFR yet tho', this I am just running on my Thinkpad X230 atm, but only in Original mode as Remastered mode has that everything-except-Manny-is-black/invisible bug)

While it is in essence an old game, I'd consider it unreasonable to expect devs to be testing their games on XP. They've obviously reworked the engine and have tested the reworked engine on several versions of Windows going as far back as the now 8 year old Vista. Developers weren't supporting MS-DOS 6 in 2002. :P

Yes they could have made the game run on XP, after all it hardly requires features that only appeared with Vista, but why should they be developing with XP in mind in 2014/15?

Yes, Vista was horrible and plenty of people (myself included) went "Woah, I'm sticking with XP!". That's no reason to continue to stick to XP forever though, 7 is perfectly good and developers aren't going to be dropping support for that any time soon.

The issue may be more related to discontinuing updating video drivers such that they include OpenGL 3.3 support as the specs state they require. All my existing XP systems haven't gotten any love via new drivers in quite a while, and the highest OpenGL version my on XP system (a Macbook) supports is 3.0.

See the quoted passage in the second post. You're quite right about XP versions of drivers not being updated any more, but this version of the game also makes use of a feature not present in the XP kernel so it's directly incompatible with the OS in addition to any OpenGL problems you might get.

The only way that could be bypassed is if they decided to release a patch that acquired the current locale in a different way, such as GetLocaleInfo rather than GetLocaleInfoEx as explained here : http://stackoverflow.com/questions/14100375/microsoft-locale-how-to-get-no-of-digits-after-decimal-place or here https://supportxpdotcom.wordpress.com/2012/04/04/linking-to-the-static-crt-libraries-is-the-only-way-to-support-xp-for-now/. Apparently the GetLocaleInfoEx is considered a good means of detecting Vista+ support.

- http://www.thedelphigeek.com/2007/02/four-ways-to-detect-vista.html
- https://msdn.microsoft.com/en-us/library/windows/desktop/dd318103%28v=vs.85%29.aspx

This version of Grim Fandango was pretty much a total rebuild, and they decided the Windows XP is a dying OP..which it is....and decided it was not worth it to program the game to run on XP.

Get used to this.

Or you could install Linux for free and let go of your obsolete virus magnet.

Or I could throw my PC on the trash and vever again touch a game. Why don't you just all let me use what I want the question was just that and it has been already answered. I never asked for your opinion about me still using XP. BTW: I did not have any virus for 10 years or so - but think what you want to think. I give up (with the discussion) and will use XP as long as I can and like.

You're perfectly entitled to use whatever OS you want, but it's a bit ridiculous to be making threads where you're surprised that new releases don't support XP.
It would be like me being surprised in 2002 that MS-DOS 6 wasn't being supported in a Windows port of an old game.

Where did I ever say that I am surprised? I might have said that I think it is a wrong decision but I never said anything that the decision surprised me. Yes, it DID surprise me that a former DX9 game requires Win7 at least on non remastered mode there shouldn't be no need for it - but I never said that it surprises me that newer games sometimes don't support XP. You're speaking of multiple threads in which I should state my surprise - please tell me where they are because I never said anything about being surprised that newer games sometimes do need Win7.

Well you were acting surprised in this thread, but you also just admitted to being surprised in this post. This is a new release, written for and tested on Vista upwards. The fact that it's an old game doesn't mean this isn't a new release. This is Grim Fandango v2.0, it's normal for later versions of software to drop earlier OS support.
The reason for working or not working on XP is nothing to do with how demanding the game is on the hardware, it has everything to do with not targeting a 13 year old operating systems. The fact that the non-remastered mode has lower hardware requirements doesn't mean they should be writing for compatibility with a dead operating system.

And no, I wasn't speaking of other threads, just this one. When I said "making threads" I was talking about the activity. It doesn't literally mean I'm talking about you making lots of threads. I'm going to put it down to subtleties being lost due to language differences rather than pedantry but feel free to correct me if you understood and are just being pedantic. :P

I agree with OP. This remastered edition is just sloppy all around. There's no way this game should require 4gb of ram for instance or is there any excuse for crashes and other issues on systems that meet the requirements. Meanwhile the ps4 version runs fine.

It's obvious where the resources went.

Any game running on windows 7 should have 4 GB as minimum it's just something the OS need with games.