UFO: Afterlight is a 2007 strategy computer game and the third in Altar's UFO series. Like its predecessors UFO: Aftermath and UFO: Aftershock, it combines squad-level tactical combat with overlying strategic elements in a manner that's deliberately very much like the major 1994 classic X-COM: UFO Defense. In Afterlight, you play the game in two parts. The first part is the strategy game consisting of claiming territory, building structures on the planet, managing research and production, managing personnel training, base management, and diplomacy where you can trade items and resources with other parties. The second part of Afterlight is the tactical game where, much like the previous UFO titles, you equip and direct up to seven soldiers to accomplish a goal in missions. Some mission goals are to capture or kill a specific enemy, destroy or retrieve a particular item, and the ubiquitous kill everything that moves.