Good Old Games is offering The Witcher 2: Assassins of Kings for only $29.99 (40 percent off the regular price) for a limited time. Also getting a 40 percent discount over the weekend: Jagged Alliance 1 for $3.59 and Jagged Alliance 2 for just $5.99; Battle Isle Platinum for $5.99, Realms of Arkania 1 and 2 for $3.59, Realms of Arkania 3 for $3.59 and Master of Orion 1+2 for $3.59.

Both promotions end on Monday, August 22 at 3:59 a.m. (7:59 a.m. GMT), so get 'em while you can.

For more info, check out gog.com .