Set in the near future during a period of planetary colonization, Killzone drops you in the middle of a war between the ISA Command and a militaristic separatist faction, the Helghast. As one of four ISA members, your initial objective is to escort a high-ranking official to an evacuation point. Players can select between four ISA troops each with special abilities and weaponry to accommodate their playing style and battle through 11 intricately detailed environments that showcase the harsh setting of a war-ridden planet. Additionally, players can visit the armory and equip themselves with 27 different unique weapons. Drawing inspiration from classical military conflicts of the 20th century, Killzone demonstrates a unique graphical style that captures the grit and realism of intense military warfare.