Humble Weekly Bundle is discounted strategically this time around, featuring Sang-Froid: Tales of Werewolves, Stronghold Crusader Extreme HD and Cubetractor for any price you want, and then Unity of Command: Stalingrad Campaign, Eador: Masters of the Broken World and Space Hulk for $6 or more. Finally, there's Ironclad Tactics for $9 or more.
If you didn't catch that, these are all strategy games. Pay $1 or more and get Steam keys for the applicable games, too. This round of Humble sales benefits the American Red Cross and Child's Play Charity.