Psyonix. (2015). Rocket League [Video game]. Psyonix.

Rocket League is a vehicular soccer video game developed and published by Psyonix, released in 2015. It serves as a sequel to the 2008 game Supersonic Acrobatic Rocket-Powered Battle-Cars. In Rocket League, players control rocket-powered vehicles to hit a large ball into the opposing team's goal, effectively combining elements of soccer with vehicular gameplay. Matches typically last five minutes, with sudden-death overtime if tied. The game supports both single-player and multiplayer modes, playable locally and online, including cross-platform play across all versions.

The gameplay mechanics are straightforward yet offer depth for skill development. Players can accelerate, brake, and boost their vehicles to achieve higher speeds. The ability to jump allows for mid-air hits, adding a vertical dimension to the gameplay. Strategic use of boosting and jumping enables players to perform aerial maneuvers, block shots, and execute precise passes. Matches can range from one-on-one to four-on-four, with both casual and ranked playlists available. The competitive online mode features tiered ranks within game seasons, where victories or losses affect a player's rank. Additionally, a single-player Season mode allows competition against computer-controlled opponents.

Psyonix began formal development of Rocket League around 2013, aiming to refine the gameplay from its predecessor based on criticism and fan input. Recognizing the lack of marketing for the original game, Psyonix engaged in social media and promotions to market Rocket League effectively. The game was initially released for PlayStation 4 and Windows in July 2015, with subsequent ports for Xbox One and Nintendo Switch. Physical retail versions were distributed starting in 2016 by 505 Games and later by Warner Bros. Interactive Entertainment. Although versions for macOS and Linux were released in 2016, support for their online services was dropped in 2020.

Rocket League has been praised for its gameplay improvements, graphics, and overall presentation, though some criticism was directed at its physics engine. It has received numerous industry awards and is considered one of the greatest video games ever made. By early 2018, the game had achieved over 10 million sales and 40 million players. It has also been adopted as an esport, with professional players participating through ESL, Major League Gaming, and Psyonix's own Rocket League Championship Series (RLCS).