The city building game "Mathematical City" is intended for students of grades 9-10 in order to interest them in mathematics and to show various possibilities of applying mathematical knowledge. The player and the team have to build a space resort that generates income. The player is responsible for planning the city and giving instructions to the team, and the team is constantly faced with various challenges that the player helps to overcome. As you level up, you can travel to other players' cities and sabotage them in order to lure tourists and earn more money. The player's place in the standings depends on the money transferred to Lithuania, so it is important not only to build buildings and earn, but also to help the Lithuanian budget. The tasks solved by the player correspond to the general programs of the 9-10th grade, giving priority to two areas - data and interpretation and geometry and measurements.