Google’s Project Stream is – in theory – going to let you stream the latest and greatest in videogames to your Chrome browser, with all the computational heavy lifting handled remotely on a server. Right now, Google is holding a technical test for the service, and players have been able to play Assassin’s Creed Odyssey via stream since it launched. Now, Ubisoft says you’ll get a free copy of Odyssey on Uplay just for trying it out on stream.

Naturally, it’s not as simple as just signing up and waiting for a free copy to arrive. You do have to sign up for the Project Stream tech test, which you can do here. It’s a limited test, though, and Google is only bringing on ‘qualified’ participants, which probably means people with internet connections that can handle 25 megabits per second or more. You’ll also have to be in the United States.

Once you sign up, you’ll be able to play Assassin’s Creed: Origins for free via the stream, and partner Ubisoft is giving all participants 1,000 Helix credits just for trying it out. But if you play for an hour or more between now and January 15, you’ll also get a copy of Assassin’s Creed: Odyssey to install and play locally through your Uplay account, free of charge.

That’s a sweet enough deal to make signing up for the test pretty appealing – even if performance on Project Stream isn’t quite up to what you’d expect from a PC running the latest graphics hardware, you’ve still got a free local copy to look forward to. And spending an hour playing an Assassin’s Creed game isn’t hard to do at all.

Here’s Google’s video showing Project Stream in action:

To sign up, head to the Project Stream page and fill in your details. You’ll also need a Uplay account, Chrome, and be at least 17 years of age to participate. If you get an invite to the test, you’ll have until January 15 to try it out and play Odyssey to your heart’s content.

After the test wraps up, you’ll get an email with instructions on how to redeem your free copy of the game, as long as you’ve spent at least an hour playing. Your saves and in-game items from the Project Stream version will transfer over to your local copy once you’ve activated it, but any unspent Helix credits won’t.