Plot: ATOM RPG is a post-apocalyptic role-playing video game, which takes place on the territory of the USSR in an alternative world after a nuclear war. The game was developed and published by the independent studio Atom Team. Wikipedia
Plot: XCOM: Enemy Unknown is a 2012 turn-based tactical video game developed by Firaxis Games and published by 2K Games. The game is a reimagined remake of the 1994 cult classic strategy game UFO: Enemy Unknown and a reboot of MicroProse's 1990s X-COM series. Wikipedia