Rayman Legends is free via Uplay store until the 3rd April.
Store Description:
Rayman, Globox, and the Teensies are off wandering through an enchanted forest when they discover a mysterious tent filled with a series of captivating paintings. As they look more closely, they notice each painting seems to tell the story of a mythical world. While focusing on a painting that shows a medieval land, they are suddenly sucked into the painting, entering the world, and the adventure begins. The gang must run, jump and fight their way through each world to save the day and discover the secrets of every legendary painting.
Click here to get this game free from the Uplay store.
(It might say “75% off” on the store page. Ignore this, it’s an error, it’s actually 100% off as the price shows).