If you head over to GOG.com this weekend, you will notice some new additions and a sale. The new additions are: Thief: Deadly Shadows, Anomaly: Warzone Earth, Tom Clancy's Splinter Cell, and Legacy of Kain: Soul Reaver. All four are presented DRM-free and all cost ten dollars or less. Thief and Anomaly also include some extras with your purchase, so you get even more for your dollar. GOG.com is also having a 50% off sale this weekend on various titles from Rebellion. Sniper Elite V2 just launched the other day, so now is your chance to pick up the original Sniper Elite to see the game that started it all. The Empire Earth series is also on sale this weekend, allowing you to experience the vast history of the world through diplomacy or warfare. The Ground Control series is more of a real-time tactics game that lets you control your own hi-tech army. You can also pick up Evil Genius to control a criminal mastermind bent on world domination. These games and more (like Lords of the Realm and Lords of Magic) are only on sale this weekend, so you need to act fast!