Ubisoft are officially offering the complete Trials of the Blood Dragon game for PC users free of charge, though with one caveat. The demo has to be beaten with 15 faults or less. Given the somewhat challenging style of Trials, this free promotion is definitely a double edged sword.
You only get one shot at it, and the promotion lasts until July 31st. To access the demo you must log into Uplay, click the games tab, and you will find the demo listed in the Free Games section.
Trials of the Blood Dragon is available on PS4, Xbox One and PC, but this promotion only runs for the PC version.