https://30days.ubi.com/Promotion/Calendar
List of stuff given per day
Here are full list:
1: Rayman Classic on mobiles
2: 30% off selected Ubisoft games
3: Exclusive Collection of E3 2016 Cards
4: UBI30 Logo Animation Exclusive GIF
5: For Honor GIFs
6: UBI30 360 Images
7: Just Dance Greeting Card
8: Ubisoft DIY Paper Advent Calendar
9: Steep Wallpaper
10: Exclusive Digital Posters from E3 2016
11: Rabbids Holiday Goodies
12: WWW Wallpaper
13: Ubisoft Cocktails Recipes
14: Assassin’s Creed 3 on PC
15: Ubisoft Wrapping Paper
16: 300 Game Giveaway
17: Watch_Dogs 2 Wallpaper
18: Ubisoft Gift Tags
19: Ubisoft Dessert Recipes
20: Ghost Recon GIFs
21: Wallpaper for Mobile
22: Prince of Persia on PC
23: Rayman Legends on PC
24: Splinter Cell on PC
25: The Crew on PC
26: Rayman GIF
27: Steep GIF
28: Exclusive 2017 Digital Holiday Cards
29: Ubi30 Wallpaper
30: Ubisoft Holiday Decorations
The 30 Days of Giveaways operation is only valid from November 24, 2016 at 09am Central European Time ("CET") and December 23, 2016 at 23:59 pm CET. Download these assets with your Uplay account as a free giveaway. These assets cannot be sold, or exchanged for money.