This weekend, Stardock's Impulse digital distribution service will be giving away free digital copies of the original Assassin's Creed with a purchase of Assassin's Creed II for $39.99.

Ubisoft's Assassin's Creed II and Assassin's Creed

Additionally, Ubisoft is running its own sale on its official PC store, marking down titles from 20% to 67%. Stand-outs include both Assassin's Creed titles for $$30 ($10 less than Impulse) and a Splinter Cell: Conviction bundle including DLC bonuses for $49.99.

Over at Direct2Drive, gamers can snag Call of Duty: Modern Warfare 2 along with both DLC map packs and a free copy of Call of Duty 4: Modern Warfare for $89.95.