To wrap up their #Ubi30 celebration, Ubisoft are making a 30 day advent calendar full of gifts. They might be free games, they might be Uplay ingame stuff, or even stuff like wallpapers or shit like that, who knows.
For the first day, Rayman Classic is free on iOS and Android
https://itunes.apple.com/us/app/rayman-classic/id1019616705
https://play.google.com/store/apps/details?id=com.ubisoft.raymananniversary
https://30days.ubi.com/Promotion/Calendar/
Also reminder you can get Far Cry 3 Blood Dragon as part of the regular Ubi30 promotion here:
https://club.ubisoft.com/en-en/ubi30
For the first day, Rayman Classic is free on iOS and Android
https://itunes.apple.com/us/app/rayman-classic/id1019616705
https://play.google.com/store/apps/details?id=com.ubisoft.raymananniversary
https://30days.ubi.com/Promotion/Calendar/
Also reminder you can get Far Cry 3 Blood Dragon as part of the regular Ubi30 promotion here:
https://club.ubisoft.com/en-en/ubi30
Reddit's spilled the beans
Messing with the source code we can find the content of each day:
Day 1 (Today - 24/11) : Rayman Classic on Mobile: Android - iOS
Day 2 (25/11) : 30% off Ubisoft Games
Day 3 (26/11) : Exclusive Collection of E3 2016 Cards
Day 4 (27/11) : Ubi30 Exclusive GIF
Day 5 (28/11) : For Honor GIFs
Day 6 (29/11) : Ubi30 360 Image
Day 7 (30/11) : Just Dance Greeting Card
Day 8 (01/12) : Ubisoft DIY Advent Calendar
Day 9 (02/12) : Steep Wallpaper
Day 10 (03/12) : Exclusive Digital Posters from E3 2016
Day 11 (04/12) : Rabbids Holiday Goodies
Day 12 (05/12) : WWW Wallpaper
Day 13 (06/12) : Ubisoft Cocktail recipes
Day 14 (07/12) : Free Assassin's Creed 3 on PC
Day 15 (08/12) : Ubisoft Wrapping Paper
Day 16 (09/12) : 300 games Giveaway: 300 copies of 3 of the latest Ubisoft titles (1 game per person, first come first serve)
Day 17 (10/12) : Watch_Dogs 2 Wallpaper
Day 18 (11/12) : Ubisoft gift tags
Day 19 (12/12) : Ubisoft Dessert recipes
Day 20 (13/12) : Ghost Recon GIFs
Day 21 (14/12) : Wallpaper for mobile
Day 22 (15/12) : Free Prince of Persia on PC
Day 23 (16/12) : Free Rayman Legends on PC​​
Day 24 (17/12) : Free Splinter Cell on PC​
Day 25 (18/12) : Free The Crew on PC​
Day 26 (19/12) : Rayman GIF
Day 27 (20/12) : Steep GIF
Day 28 (21/12) : Exclusive 2017 Digital Holiday Cards
Day 29 (22/12) : Ubi30 Wallpaper
Day 30 (23/12) : Ubisoft Holiday decorations