Psyonix had previously developed Supersonic Acrobatic Rocket-Powered Battle-Cars in 2008 for the PlayStation 3. That recreation itself bore out Rocket League Prices from preceding modifications that Psyonix' founder, Dave Hagewood, had executed for Unreal Tournament 2003 via increasing out automobile-based gameplay that Epic Games had already set in region inside the engine into a brand new recreation mode known as Onslaught.

For this, Hagewood changed into employed as a contractor by Epic for Unreal Tournament 2004 particularly for incorporating the Onslaught mode as an official a part of the sport. Hagewood used his revel in at Epic to determined Psyonix. Among different contract initiatives, Psyonix worked to attempt to discover a way to make racing the Unreal motors in a physics-based totally engine enjoyable. They had toyed with numerous options including race modes or mazes, however found that after they brought a ball to the area to be pushed through the vehicles, that they had come across the right formulation, which could become Battle-Cars.

Further to the success become the addition of Rocket League Item Prices the rocket-powered automobiles; this initially turned into to be a easy velocity boost, however with the physics engine, they have been able to have the vehicles fly off and around the area, furthering the possibilities for gameplay.