Edit: Disregard, I just misinterpreted their post. =\

GOG has put their horror games on sale now. So I guess they're preparing an Halloween sale this week.
Maybe it'll launch this midnight.

The sales for these games look like they end on the 26th, so maybe the Halloween sale proper will start around then. It would be keeping with historical trends of the past few years. But I don't expect anything big tonight on account of the catalog filter issues still not being resolved.

I hope the Halloween Sale will start tomorrow .

I do. One day dead, not today xD (and it's 10:59am)

There are different festivals coming. Fiesta De la Muerte or el Día de Muertos is something else. All Souls Night is even something else, not to be mistaken with Devil's Night. And... Forefathers' Eve is something even different. And I am sure you have heard about the All Saints' Day and All Souls Day.
Now. Put it in a blender, add two spider sloughs, and ask a Witch for a kiss, that's those days Halloween : D seriously. We will die one day, for me is a reason to play games and laugh xD

With an attitude like that you must love this song.

Are gog major sales still start days before steam ?

So... will there be a Black Friday sale soon ? xD

There has been one every year since 2016, so you can bet on it.

Third and fourth Friday and third and fourth Monday of November.
One week promo should last and CyberMoonday is on 27th.
The Black Friday event is on 24th. If it's not today it will start on Monday.

last year we had these

https://www.gog.com/news/black_friday_specials_gog_bundles_insomnia_deals_byob_and_giveaway

No new sales this Monday – perhaps they're making a place for a Black Week sale – starting tommorrow? Wednesday?

Very likely.

i wonder what byobs will be on sale

Or maybe they will just start it on Friday like they have done some (most?) years. I recall one year it was just Friday-Sunday and then a one day Cyber Monday theme (maybe 2021 looking at the list). Seems to me a good thing if they do it that way rather than adding new stuff to a sale over a longer period of time.

Looks like the Winter Sale has started Dec. 11 - 16 every year since (and including) 2017. And about half the years before that (the others being earlier and short often with a second sale later in December).

P.S. I think the Halloween Sale should go on the list, Oct. 25 - Nov. 1. Although I guess 3000 games on sale isn't that much these days, possibly it should be demoted to a minor sale?

PS/2 The Tuesday after Thanksgiving has been themed Giving Tuesday in the US in recent years with a focus on donations. Since GOG has done a few charity bundles this year possibly they might do something on the 28th?