20% off Shovel Knight series

Note:
Shovel Knight: Specter of Torment IS included in Shovel Knight: Treasure Trove.

Ash of Gods: Redemption also seems to have gone on stealth sale...

Very very buggy Weekend Promo:
https://www.gog.com/promo/20180413_weekend_sale

All games listed have 0% discount for now.

I see 0% discounts for every single game :D

Owner of This War of Mine will get 10% off for Frostpunk.

This discount was not in the NEWS thread initially.
Those who are eligible for this offer but didn't get the discount should reach out to Support to resolve the issue.

Anyone else notice the "hidden Crysis promo"?

Well spotted, this one wasn't on the list.

I wonder if it's new, or it's been there for a while but nobody had noticed before.

Yay. I spotted one. I was just looking at my wishlist to whether there is any bundles.

Not a real promo, but Factorio will have a new price ($20 -> $30) since 16th of April 2018. [1]

The team have a strict no sale policy, so if you want this game, buy it now.

[1] https://www.factorio.com/blog/post/016-price-change

Thanks for that info about the Factorio price increasing. I pasted it to the Freenode ##gaming chat, for everyone that wants it:

[url=https://kiwiirc.com/client/irc.freenode.net:+6697/##gaming]https://kiwiirc.com/client/irc.freenode.net:+6697/##gaming[/url]

They have a strict no sale policy, until they exit early access. Or have they updated they original announcement, and I missed it?

EDIT: The announcement you linked doesn't mention anything about it, in fact it hints at the opposite... so maybe I misunderstood them...

steamcommunity.com/games/427520/announcements/detail/1654384966950604676

Price change
MARCH 30 - KLONAN
Dear all,

Version 0.16 has become stable, and this means that there is one last step for us to reach the 0.17 which will probably become 1.0 version. Then Factorio will finally step out of the Early Access zone. This will take some months but the roadmap is clear for us.

We feel that now is a good time to adjust the price of the game. The price of the game has been growing steadily together with the game becoming bigger, more stable and polished. After careful consideration, we have decided to set the new price of the game to 30 USD (or your regional equivalent). This change will become effective as of 16th of April 2018. This is the final Factorio price update, unless something unforeseen happens, so it will also be the price for the game for 1.0 release.

As you probably know we have a strict no sale policy. The game will not go on sale on Steam or any other platform. This basically means that purchasing before the 16th of April 2018 is the only way to buy the game cheaper than the increased release price.

That's exactly what I was referring to with my edit. Thank you anyway!

80% off The Bard's Tale
Thanks to mrkgnao.

UPDATE:
The sale is a hidden Daily Deal, only lasts for 24 hours. Grab it while you can.

Reference:
https://twitter.com/GOGcom/status/985523180533092352

It showed up on the front page when there was less than 2 hours left, and then it was gone.