Not to beat a dead horse, but the Steam version has achievements and the GOG version does not.

It really should not be that difficult to add it to a visual novel.

Depends really, I don't know about this one but a lot of Visual Novels use Ren'Py, the problem here iirc is that Ren'Py is open source. But the GOG/Steam code for Achievements can't be public. So someone would have to maintain it and distribute it privately, which you won't see people eager to do for GOG.

How does this bundle thing work? I already own chapter 1 but even with putting the free game again in my cart it only shows the 75% discount on one game ...

I'm only seeing the 10% discount for the new release.

"That’s not all, for another 2 months (until 14th July, 11 PM UTC) you can buy chapters 1-4 together in a bundle with a 75% discount. "

The discount (for one off the 4 games) was only shown after I put them all in my cart. But according to the above every game from 1-4 should get a 75% discount.

You have to add chapter 2, 3 and 4 to your cart. It then should jump to 75% off your order total for those three games, at least it does for me.

https://www.gog.com/game/higurashi_when_they_cry_hou_ch2_watanagashi

https://www.gog.com/game/higurashi_when_they_cry_hou_ch3_tatarigoroshi

https://www.gog.com/game/higurashi_when_they_cry_hou_ch4_himatsubushi

I had them in the cart for the whole time. After I read your post I decided to look in the cart again and ... bang 75% for each. It simply was delayed ... which is something I should have expected here on GOG ;)

Thank you.

I think it works as intended. How would it be a bundle discount, if you would get it for the games individually?

Edit:
Scratch that, answering that would probably spoil everything :P

Is "Higurashi" Santa Claus in Japanese? Or who cries "Hou Hou Hou"?

So, any chance for Ciconia coming here?

(though, to be fair I can't really see it selling much here because the main demographics at gog aren't much into vns to begin with and gamers in general are cheapskates and most wouldn't buy a niche game at full price even if they're fans and the fans that are passionate enough to be willing to pay full price to play it right away have already bought it and probably wouldn't be willing to double dip so gog is pretty much too late to bother with it at this point *shrug*).

I have read Masturbayashi for a change :D

Good thing that the 75% discount lasts until July. Maybe I can buy the first 4 episodes next month :)