Early Access to Quantum Rush has drawn to a close, as Steam now offers the official release under the title Quantum Rush Champions, an action/racer from GameArt Studio. This community announcement has the details on what's changed for the release version which includes several new campaigns and other content as well as bug fixes. Here's a new launch trailer and here's word:

The release version is significantly more comprehensive than the Early Access game. In addition to extending of the already available features many new functionalities have been added. There are e.g. brand new game modes and a new achievements system with over 90 challenges. The game is available in German, English, Italian, French and Spanish.

Quantum Rush: Champions is designed as an offline single player and offers next to an arcade mode a career mode with sophisticated campaigns, different game modes and challenging boss fights, which a player has to master to unlock more game content. The races are set on gigantic futuristic race tracks on earth and in space.