Rocket League is getting even more new DLC.

Developer Psyonix has announced a partnership with Valve to bring Portal-themed content to the soccer-with-cars game starting this week. Available beginning December 1 on PC will be a variety of Portal items that you can get for free by simply playing matches.

“Obtainable by playing a full game of Rocket League, the official Portal items are potentially rewarded at the end of every match, win or lose,” developer Psyonix has announced. “All you have to do is keep playing until the match ends and your chance to earn a new Aperture-themed goodie of your very own.”

Here’s a list of the Portal items coming to Rocket League:

• Cake (Topper)
• Conversion Gel (Rocket Trail)
• Propulsion Gel (Rocket Trail)
• Repulsion Gel (Rocket Trail)
• Aperture Laboratories (Antenna)
• Cake Sticker (Antenna)
• Companion Cube (Antenna)
• Personality Core (Antenna)
• PotatOS (Antenna)

Other new Rocket League DLC arriving in December includes the Mad Max-like Chaos Run and Winter Games.