Just for if it helps, here's a approximated overview of sales since 2012. (very approximate, just to see the whole year at a glance).

from bottom to top, 2012 to 2019.

Oh, this looks interesting. Thanks for sharing!

Thanks, that's very interesting indeed!

Thanks, I used the data from this thread. It seems that man sales go on winter time near Xmas, Early summer and FEB-Mar, probably being a time of the year when sales in general go slow.

Games Come True Sale added to OP.
Started 19/08, ends 26/08, 250+ deals up to -75%.

You sure? Looks like an average weekly sale to me just with more games than usual.

Do you think I shouldn't?

I hesitated for a while, but it's still more then 10% of the games catalogue. Discounts are not very impressive, but I think it still fulfills the criteria of big sale. Poor one, but still.

Usually only seasonal sales are big enough to discount the whole catalogue. The list from the first post contain more than that.

When you visit GOG main page you don't even know there's a sale going on. If they don't advertise it on the front page and not give it importance, i don't think we should either. Because of that seems like a regular weekly sale to me.

Would be nice if more people would give their opinion about this. :p

I have to agree with you. Personally it doesn't feel like a big / special sale to me. Normally they stand out from regular weekly sales from having custom made art / backgrounds on the home page which immediately draws attention to it. Likewise, the discounts seem to be getting lower and prices higher (66% vs 75-85% for Baldur's Gate / Icewind Dale / Planescape, 49% vs 75-80% for Pharoah & Zeus, etc).

OK, you're right. Removed. Let's wait for a big sale expected in September. If GOG will suddenly make this one something extraordinary, we can always add it again.