From now until Christmas Eve, Blacksmith Games' Appvent Calendar will be revealing a new game that can be downloaded for free each day. Modeled after holiday advent calendars, each of these games will only be free the day they're revealed, so be sure to check back often.
The first freebie is Craneballs Studios' 33rd Division [App Store], a line drawing stealth strategy game set during World War II.
The goal is to guide soldiers, medics and sergeants entering the battlefield to each of their designated destinations without being seen (shot and killed). This is done by drawing a course across the battlefield (Flight Control style) in and among obstacles and roving patrols.
You can read more about 33rd Division in our review, but since these daily free games are a limited offer I'd suggest downloading the game as soon as possible if you're at all interested in it.
App Store Link: 33rd Division, Free (Today Only)