We're still waiting to see fully cross-platform Rocket League, but the game just made some other adjustments to keep things fresh for regular players. Dubbed Rumble Mode, the new 3v3 gameplay variant tosses in everything from a grappling hook to a tornado. Even better, more people can enjoy it now that the game has a beta version available on Linux and OS X, and at least on Steam, the game and all DLC are available for 25 percent off. One thing to note: Psyonix says it is aware of framerate issues post-patch and is "actively investigating."