Perforated viscus is a fatal condition associated with a high mortality rate that necessitating immediate management. In gastric cancer, perforation is a relatively late rare presentation. In this study, we report a case of a 40-year-old male who presented with perforated gastric cancer. In the emergency department (ED), the provisional diagnosis was septic peritonitis and shock. However, upon exploratory laparotomy, pyloric tumor was detected metastasizing to the duodenum, liver, and porta hepatis.