The application allows for point-based forecasting of ground surface subsidence as a result of underground mining (longwall mining by default). The calculations are based on the method of cellular automata and its mathematical characteristics described in scientific publications by Dr. Paweł Sikora. The application allows calculating only the subsidences for the case of a flat deck. A deterministic, lossless transition function was used. The applied algorithm is characterized by the principle of superposition of mining influences and the distribution of subsidence consistent with the t-student distribution.