GOG has a new sale live, and for fans of retro games, there are some real treasures to add to your digital library here. A lot of these games are only available on GOG, and like its other titles, these are DRM-free. Some of the gems here include Strangehold for $2, a classic action game in which you take on the role of Inspector Tequila from John Woo's influential action film, Hard Boiled. Starring Chow Yun-Fat, this is a fun action game full of bullets, dramatic dives, and slow-motion shootouts. Plus, you can probably mod it to add some extra pigeons to the gung-ho experience.

Only on GOG Sale

• Homeworld: Emergence -- $1.20 ($10)
• Blood Omen: Legacy of Kain -- $1.20 ($7)
• Stranglehold -- $2 ($10)
• Warhammer 40,000: Fire Warrior -- $1.20 ($6)
• Gangsters: Organized Crime -- $1.50 ($6)
• Street Fighter Alpha 2 -- $2 ($6)
• Warhammer 40,000: Chaos Gate -- $2.50 ($10)
• The Settlers 3: Ultimate Collection -- $2.50 ($10)
• Mortal Kombat 4 -- $1.50 ($6)
• Mortal Kombat 1-3 -- $1.50 ($6)
• American Hero: Unrated Edition -- $12.30 ($15)
• Metal Gear -- $4.20 ($6)
• Metal Gear Solid -- $7 ($10)
• Tigershark -- $4.80 ($8)
• The Wheel of Time -- $5 ($10)

In the mood for some classic Mortal Kombat? You can pick up the original trilogy of games for $1.50, while Mortal Kombat 4 and its hard pivot to 3D is available for the same price. The fourth outing isn't the best Mortal Kombat game, but it's worth it for those hilarious cutscenes alone. Sticking with fighting games, you won't want to miss out on Street Fighter Alpha 2, a killer combo of lightning-fast gameplay and amazing innovations for the series back then. Reversals and Alpha Counters added new layers of complexity to the experience, and at $2, this is a great price for one of the best Street Fighter games.