GOG (opens in new tab) is throwing a sale on the GOG-exclusive games in in their library, which happens to include a rather popular roleplaying game called The Witcher 3 (opens in new tab). The huge RPG is half-price, just in time for the holidays. If you already have The Witcher 3 and liked it enough to play more, the Hearts of Stone expansion (opens in new tab) is a little bit cheaper. If you want to catch up with the series, The Witcher 2 (opens in new tab) is 85% off.
The sale is also discounting a bunch of the good old games the shop first became known for. The D&D pack (opens in new tab) is 80% off, and includes Baldur's Gate 1 and 2, Icewind Dale, Planescape Torment, Neverwinter Nights and more. There's plenty more nostalgia to enjoy in the Warhammer (opens in new tab) and Star Trek bundles (opens in new tab). The sale will run until 5:59am PST / 1:59pm GMT on Sunday.
There are also discounts on games that aren't exclusively sold on GOG. You might want to check out Galactic Civilizations 3 (opens in new tab), which is also currently half-price.