Mathematics and Indonesian Language are subjects that are considered difficult by students in Indonesia. In addition, students are also considered less creative. One way to solve this problem is to apply the game in learning. For this reason, a game that can solve the problem needs to be designed. The game that is hypothesized to improve math, language, and creativity is Number-Based Word Synonyms (NBWS). The purpose of this paper is to present the design NBWS game, which consists of ten levels.