1 Million Sold on Steam! Coming to SteamOS/Mac later this year! 48-Hour Steam Sale at 10% off! http://t.co/KOJV2v3IZB pic.twitter.com/e5Eikrnlbg — Rocket League (@RocketLeague) August 27, 2015

Article taken from GamingOnLinux.com.

Rocket League is massively popular right now, and we are happy to confirm it's heading our way! You even get a free copy with Steam Hardware. The above image is taken directly from Steam, but the Rocket League developers also announced it on their website:If you already own it, you will get a free copy to gift to a friend.It's also worth noting it seems Portal 2 will also be included with Steam Hardware purchases. Same deal here, free copy to send to a friend if you already own it.I have a Steam Controller ordered, so hopefully I will see my copy then too. I do wonder how they will be doing this though, if you have to sign up through Steam somewhere, or if you get gift cards now thrown in the box, it will be interesting to see if I remember at the time.(Official)Soccer meets driving once again in the long-awaited, physics-based sequel to the beloved arena classic, Supersonic Acrobatic Rocket-Powered Battle-Cars!A futuristic Sports-Action game, Rocket League, equips players with booster-rigged vehicles that can be crashed into balls for incredible goals or epic saves across multiple, highly-detailed arenas. Using an advanced physics system to simulate realistic interactions, Rocket League relies on mass and momentum to give players a complete sense of intuitive control in this unbelievable, high-octane re-imagining of association football.Check out Rocket League on Steam , but as always we advise waiting until it's released.