The Birthday Sale at the Humble Store has begun.
It will last until 20.11.2016 and offers new sales every day.
Direct link to the Linux discounts: https://www.humblebundle.com/store/search/platform/linux/sort/discount
The Steam Halloween Sale 2016 has begun and it will last until 01.11.2016!
The Steam Summer Sale 2016 has begun!
It will last until 04. July 2016.
The Lunar New Year Sale on Steam has begun and it will last until 12.02.2016!
The Steam Winter Sale 2015 has begun!
Here is a (currently incomplete because still updating) list of the current discounts for Linux games (from https://steamdb.info/sales/?displayOnly=all&category=999&cc=uk):
The Winter-Sale at GOG has begun!
The sale will last for 11 days, until December 13, 1:59 PM GMT / 2:59 PM CET / 5:59 AM PST / 8:59 AM EST.
After the first 48 hours, the games will be discounted in a 24 hours rythm, so take a look often!
This time you can get two games for free: Divine Divinity after spending $5, and Blackguards Special Edition after spending $50 or more.
The complete launch-text follows:
The so called "Steam Exploration Sale" has recently begun!
It lasts until 01.12.2015 and for the first time ever it has only lasting discounts (no more "Daily Deals").
These are all discounted games for Linux:
