Black Friday is technically at the end of this week, but that hasn’t stopped the folks at GOG from kicking off yet another sale:

Our Black Friday sale values both your time and money: free games for shopping or just dropping by, awesome offers, and a cool seven days to take in the selection.

Get MDK for FREE during the first 48 hours of the sale. First released in 1997 to critical acclaim, this is a classic your library deserves – a unique sci-fi shooter with tons of personality, humor, and gameplay variety. Go to the GOG.com main page and claim your free MDK by clicking on the giveaway banner.

Every purchase you make during the sale will bring you closer to unlocking StarCrawlers for FREE when you spend 15 USD. StarCrawlers is one of 2017’s best hidden gems, think Legend of Grimrock in space, think cyberpunk meets Firefly, think ruthless corporations competing for power… and your morally questionable services in the midst of it all.

Finally, find over three hundred deals up to 90% off among all-time classics and greatest premieres of the year, including: Furi (-40%), The Witcher 3: Wild Hunt GOTY (-60%), Heroes of Might and Magic III (-75%), Hellblade: Senua’s Sacrifice (-25%), Dungeon Keeper 2 (-75%), Titan Quest Anniversary Edition (-80%), Little Nightmares (-50%) and many more.

Also worth noting are fantastic games under 2 USD: We Are The Dwarves with a whopping 92% discount; plus Total Annihilation: Commander Pack, Medal of Honor: Allied Assault War Chest, Populous and others!

The Black Friday sale ends on November 28, 11PM UTC. The MDK giveaway ends on November 23, 2PM UTC. Unlocking StarCrawlers requires total spendings of 15 USD (or the local equivalent) on any GOG.com products while the sale lasts.

I did notice that the Ultima series is on sale for between 69% and 74% off (depending on how many games in the bundle you buy).