NEVER PRE-ORDER!!!
That rule was made for that sole reason. Now you can congratulete yourself on being proud Windows gamer.
Sadly, that is exactly how pre-orders work when it comes down to Linux. The only new thing is that GOG turned out to be no better than Steam (which have this "bait and switch" tactic since the very beginning).

GOG and Steam offer refunds, right? So in this case, their broken promises work out against them -- Linux gamers can simply cancel their pre-order and receive a refund, and GOG/the publisher have to cover the transfer fees. Only fair, I suppose, since digital pre-orders offer no benefits to the customer. So if the store and publisher are the only ones to benefit from pre-orders, they should also be the ones to take the backlash when things go wrong.

Just make sure to let the publisher/devs/distributors know why you cancelled your order.

Sounds reasonable, but I'm afraid GOG will have none of it. Instead of refund they will probably offer to compensate into "GOG Wallet" so that the money paid will never return to customer.

The developer said:
-We have a Linux version completed, but have not been able to playtest it yet.

Source:
https://www.gamingonlinux.com/articles/linux-version-of-the-coma-recut-removed-at-release-after-taking-pre-orders.10407

What's annoying is that GOG didn't even comment on this in the announcement, and developers didn't apologize for removing Linux support that was included before. I didn't pre-order it, but I find such behavior inappropriate.

Oh, I'm sure they'll offer that, but you could just turn that offer down if you're not into the virtual monopoly money thing, and instead ask for a full refund to your bank account/PayPal account. Pretty sure they're legally bound to provide you with the latter. Actually, never mind the "pretty sure" -- they are required to offer a full refund, especially in a case where they are not providing the product/service you paid for.

They´ve always offered both options to me, I dont see why it would be different here.

Finished the game!

I just submitted my review. In case gog's shitty code eats it up (wouldn't be the first time), here it is in its full, undiluded 2686 character glory:

** A boring, frustrating, unappealing exercise in K-Horror

A Korean student finds himself in a weird parallel world version of his school, where your actions will have consequences on the real world. Sounds like a cool premise, BUT...

For a game that boasts about providing a "glimpse into the life of Korea's overworked high school students", the writing is disappointingly subpar, with collectable notes that neither tell an interesting backstory nor do they manage to creep you out and dialogues oozing cringey colloquialisms. All the characters are cardboard cutouts: the unpopular kid (i.e.: you), the fat nerd, the bully, the cool girl, the hot teacher. They‘re all so one-dimensional I have to wonder why they were even given names, they'd be much easier to remember if they were just named after their respective stereotype.

Say what you will about the art style, but the quality of the animations make this look more like a browser game than anything else. You'll make ample use of your map, since there isn't really any other way to tell where you are, due to all the areas looking nearly identical. Same goes for the minimalist soundscape, that consists of the same 4-5 tracks being stuck in an endless loop. Controls are fairly unintuitive and you‘re unable to rebind them.

What's worse: There is no tutorial or any sort of written explanations of the various gameplay elements. Instead, they‘re introduced via diagram drawings that are so hard to decipher they put the average IKEA assembly instructions to shame - you‘ll just have to learn by doing.

Worst of all: the supposed horror elements. First up, we have the chase scenes: they‘re not scary, they‘re not startling, they're just lame distractions at best or (more often than not) lead to your early demise. Save points are scarce, so you‘ll have to perform menial tasks over and over again. Same goes for the deadly traps strewn about everywhere, the devs seem to take special delight in hiding those behind tables or other objects, so you won't even know what hit you until it's too late.

Even if you‘re willing to take the frustration, you‘ll have nothing to look forward to but an unsatisfying, aprupt ending. There is no climax to the story whatsoever and it made me feel cheated, like I was being punished for making some terrible mistake during the game. Turns out, there are a number of endings, but those are just different flavors of the same thing and the one true ending might just be the worst one of all.

What are we left with? A game with a promising premise that evokes little sense of dread or mysters and tries to make up for the lack of proper scares with trial&error gameplay of the most excruciating kind.

tl;dr: The Linux users who got a refund are the lucky ones :P



edit: The game has a bunch of typos as well.

edit2: In case anyone is wondering: Here are some of those diagrams I was referring to. See attached. Any would-be egyptologists here who would care to tell us what we're looking at here?

And if you don't happen to visit the front page or the forum and see this update...

Hah, funny how that works out. Thanks for the review, or should I say warning. I wasn't too impressed by the game's art style and game mechanics to begin with, but I guess now I'll skip it entirely, or wait until it's heavily discounted. A shame, really... Would be nice to hear some alternate opinions, in case some of you actually enjoyed it.

By the way, I think I managed to figure out some of those tutorial graphics. But they should really save the cryptic hints for easter eggs and secret endings, not for basic game mechanics.

Right, there's that, too...