Humble Bundle offers downloads of the Humble 3-Game Bundle for Windows or Mac for whatever you want to pay. If you opt to pay the bare minimum of $1, that's the lowest price we could find for just two of these games by $34. It includes Gratuitous Space Battles, Gratuitous Tank Battles, and Kudos 2. If you choose to pay more than average, currently $3.04, you'll also get Democracy 2. Your contribution can be donated to charity (Barefoot College, or the American Red Cross), the developers, or all three. Deal ends August 1 at 2pm ET.