GOG offers downloads of a 3-game bundle for a donation of $5 to charity. Click one of the available charities, WWF, Worldbuilders, or Gaming for Good and then choose three games. That's a price low by at least $19 and the first such offer we've seen from GOG. The games:

• Driftmoon for Windows (pictured)
• Darwinia for Windows and Mac
• Oddworld: Abe's Oddysee for Windows
• Waking Mars for Windows and Mac
• see all available games for Charity Promo from GOG