Rocket League [Steam], the highly addictive masterpiece that's currently in Beta on Linux has been updated with a brand new arena named 'AquaDome'.
See the full patch notes here.
Also, if you've been living under a rock be sure to check out the interview I did with Timothee Besset who helped port Rocket League to Linux.
I've had way too much fun with this game.
Sadly though, the crash to desktop issues are still there. Hopefully they will get ironed out sometime soon for a more pleasant experience which such a great game.
I've tried for the majority of tonight to get into a game on this new map, but no luck. I am hoping to play on it soon, but I'm enjoying it anyway.