It follows a simulator-style look into team racing of the 23rd century, specifically, the existence of Extreme-G racing. Players are one of two riders in one of six teams, all of which vie for glory in the Championship. One starts a career in the slowest class, 250G, and eventually compete their way into the 1000G cup, the fastest in the game.
The sound-barrier conventions from Extreme-G 2 are transferred here.
10 tracks are included, with twists, drops, and sharp turns, as well as 11 different opponents. Extreme-G 3 handles weaponry differently, resulting in a significant change in gameplay from the first and second games. While in the first and second games, the player could pick up weapons on the track, and firing these weapons would not consume their primary weapon bar, in the third game, the player purchases weapons with money won, and firing weapons consumes a small amount of the weapon bar for each shot. Compared to the previous games, Extreme-G 3 offers fewer weapons.
Extreme-G 3 received a mostly positive response from critics upon release. Metacritic, which assigns a normalised rating in the 0–100 range, calculated an average score of 83 out of 100, indicating "Generally favourable reviews", based on 21 reviews for the Nintendo GameCube version and 81 out of 100 for the PlayStation 2 version.GameRankings assigned it an average review score of 81% based on 41 reviews for the PlayStation 2 version and 80% based on 31 reviews for the Nintendo GameCube version.