UK development studio Sauce Digital will be holding a 12 Days of Christmas Apps contest from December 26 (Boxing Day) through January 6 (Epiphany). They've gathered hundreds of promo codes from participating developers, and will be giving away one twelfth of the codes on every day of the event. To enter the contest, all you have to do is submit your name and email on the official site, http://www.12daysofchristmasapps.com. The website also has an area where interested developers can sign-up for taking part in the promotion.
Sauce Digital is probably known best for their game Nano Rally, and have recently released Touch Soccer 3D. Their suite of games will be offered in the competition, as well as those from a variety of developers including Hanged by Freeverse, and Harbor Master by Imangi Studios. So far 47 developers have joined the contest pool, and the total number of promo codes collected is at 365 and counting.