X-COM: Apocalypse

Evil lurks within the city tonight. Our planet has been scarred by human greed, minor wars, and extraterrestrial raids. Humanity has been corralled into vast metropolises, with Mega Primus being the first. By 2084, this once-hoped-for utopia lies in ruins, where civil disorder and riots are the norm in Mega Primus, and vicious aliens bring fear to the streets. UFOs surge through Dimensional Gates. The metropolis is under attack by a mysterious foe. As the X-COM Commander, you must fend off these alien assaults and reveal their dark motives. Stay alert! If aliens have infiltrated the city's leadership, you might find yourself fighting criminal gangs, religious factions, and the authorities! Alien ships darken the skies, beasts roam the city, and chaos rules... Step into the battle, step into the Apocalypse.
Features:

• The third explosive installment in the popular X-Com saga, following UFO Defense and Terror from the Deep.
  
• Clash with alien invasion forces above Mega Primus in real-time dogfights.
  
• Engage the alien threat on the ground using either real-time or turn-based tactical gameplay.
  
• Study extraterrestrial tech to craft advanced and powerful weapons.
  
• Eradicate alien sympathizers to halt infiltration, and launch an offensive into the Alien Dimension.