GOG.com has released Beneath a Steel Sky and Lure of the Temptress, both swaddled in the site's Vista and XP-compatible wrapper, for free today as a special "holiday" gift.
Both games are the work of the lovely Charles Cecil's Revolution Software and came out in the early 90s, and both are now freeware, hence the price, or lack of one.
Up to now, the data files for the disk and CD versions have been compatible with ScummVM - the adventure game fan's wrapper of choice - but GOG.com obviously hopes its big, friendly Vista/XP compatibility will persuade people to take them up there.
The site was created to deliver old (and some relatively recent) games to modern PC gamers in user-friendly, DRM-free downloadable packages for 6 of 10 dollars apiece.
Recent additions include Oddworld: Abe's Oddysee, the older Fallout titles and Freespace 2, although you can't go too far wrong with TOCA Race Driver 3 either.