The result of the prototyping stage was interactive prototypes that the team was able to test. After several iterations, we brought the prototypes to the desired result. Many changes and updates were made to the existing project logic, as well as many new elements were added. The main changes were made to the in-game store, user account, and the main screen of the mobile game. A huge amount of new functionality of different levels was added, such as player progress, achievements, tournaments, etc.