Double Dragon Trilogy is free with any purchase during GOG.com’s latest sale

As part of their Weekly Sale Vol. 20.

Fresh off of their huge Summer Sale, GOG.com is back with their usual assortment of Weekly Sales, although this time, they are tossing in a freebie and extending a few of the bigger discounts they had on offer. If you buy anything during the site's Weekly Sale Vol. 20 you will get a free code to redeem a copy of the classic Double Dragon Trilogy, which began all the way back in 1987.

On top of that, GOG has an excellent selection of great games on sale for you to choose from. Here's a breakdown of a few of the highlights.

GAME DISCOUNT PERCENTAGE PRICE
The Witcher 3: Wild Hunt GOTY 50% $24.99
Hollow Knight 33% $9.99
Pillars of Eternity 60% $23.99
Shadow Tactics: Blades of the Shogun 25% $29.99
System Shock 2 85% $1.49
Baldur's Gate: Enhanced Edition 67% $6.66
Minecraft: Story Mode 60% $9.99
Tom Clancy's Ghost Recon 67% $3.33
Tom Clancy's Rainbow Six 67% $3.33
Tom Clancy's Splinter Cell 67% $3.33
Icewind Dale: Enhanced Edition 10% $17.99
Guardians of the Galaxy – A Telltale Series 15% $21.24

GOG.com's Weekly Sale Vol. 20 is going on for the next week, ending on July 3rd at 10 PM UTC, so you've got some time to get in on the savings.