Psyonix Inc. is an American video game development studio based in San Diego, California.
The Rocket League Championship Series, also known as the RLCS, is the Psyonix funded Rocket League league. Starting with Season 4, it has two divisions: the RLCS and the RLRS. As of Season 5, the RLCS is managed by Psyonix, instead of Twitch.