Rocket League

Psyonix's 2015 game is football played by rocket-powered cars, and the reason it survived a decade is that the physics never lie to you. Every car has the same collision volume regardless of its shape, boost is finite and refilled from pads on the pitch, and the ball obeys consistent rules - so the difference between a bronze player and a professional is entirely execution. That skill ceiling is enormous. Aerials, dribbling on the roof of your car, air-dribbling, flip resets and ceiling shots were all discovered by players rather than designed, and each took months to become standard. Matches are five minutes, so a loss costs nothing and the queue is instant. It went free-to-play in 2020 and remains one of the most-played games in the world, with a professional scene that has been running since almost the beginning. The sequel to a game nobody played, Supersonic Acrobatic Rocket-Powered Battle-Cars, it is one of the clearest cases in games of an idea being right and the packaging being wrong the first time.