Today is a big day for Psyonix, as their new update for Rocket League that includes the AquaDome will be available later today. The new underwater arena is free, and the update also includes model redesigns for some of the launch vehicles such as Hotshot and Road Hog. In addition, the update provides some free customization items, seven new achievements and trophies and other in-game tweaks to make the game a better experience. If you feel like spending a little real world money, there are also two new paid LDC premium Battle-Cars in the Proteus and Tritton, available for $1.99 each. Take a gander below and welcome to the AquaDome!