ESyS-Crustal has potential applications in natural hazard forecasting and risk evaluation (e.g. earthquakes and tsunami generation forecasting), green energy exploitation (e.g. geothermal reservoir modelling), deep geological disposal (e.g. radioactive waste treatment and CO2 geological storage), groundwater modelling, minerals exploration, and related environmental problems. ESyS-Crustal is designed for modern supercomputers and Linux-based multi-core desktop PCs.