GOG.com offers holiday gifts in the form of the free releases of Beneath a Steel Sky and Lure of the Temptress, two point-and-click adventure games from Revolution Software. The free releases from the developers of the Broken Sword series represent a discount of (calculates) infinity over Good Old Games' typical $5.99 and $9.99 price points. Though free, the games are still Windows Vista and Windows XP compatible, and contain no digital rights management. Word is: "Both games were developed by Revolution Software and famously introduced the Virtual Theatre game engine, which enabled non-playable characters to interact with the environment without players interaction. The two games have been wrapped with GOG.com's smooth and slick installers, and “Beneath a Steel Sky” even includes Dave Gibbons’ comic book inspired by the game itself."