X-COM: Apocalypse is a tactical strategy game released in 1997, part of the X-COM series. Players manage a global defense organization tasked with combating alien threats in a futuristic city called Mega-Primus. The game combines turn-based combat with resource management and research elements. In X-COM: Apocalypse, players can build and customize their bases, recruit soldiers, and develop new technologies. The game features a dynamic environment where various factions, including humans and aliens, interact, adding complexity to the gameplay. Players must make strategic decisions to protect humanity while dealing with the challenges of urban warfare.