The day looks like it is finally here and Ubisoft + is now available on Stadia in Europe. A number of happy Stadia players are now reporting they have access to the subscription. It is not available to everyone as yet so if you do not have access do not worry at the moment! Stefan on Twitter was the first person to discover this and it appeared to be just Germany but users in the Netherlands and in the UK have also reported they have access. You can try to see if you have access here.
The subscription is £12.99 a month and you will able to access the service over Stadia, PC, GeForce Now and Luna when it launches in other countries as well! The list of games you can access on Stadia is shown below.