X-COM: Terror from the Deep is a turn-based strategy video game developed and published by MicroProse in 1995 for the PC. It is the sequel to UFO: Enemy Unknown (aka X-COM: UFO Defense) and the second game of the X-COM series.

UFO: Enemy Unknown (marketed as X-COM: UFO Defense in North America) is a science fiction strategy video game developed by Mythos Games and MicroProse. It was published by MicroProse in 1994 for MS-DOS and Amiga computers and the Amiga CD32 console, and in 1995 for PlayStation. Its European PlayStation release is titled X-COM: Enemy Unknown.Originally planned by Julian Gollop as a sequel to Mythos Games' 1988 Laser Squad, the game mixes real-time management simulation with turn-based tactics. The player takes the role of commander of X-COM – a clandestine, international paramilitary organization defending Earth from an alien invasion. Through the game, the player is tasked with issuing orders to individual X-COM troops in a series of turn-based tactical missions. At strategic scale, the player directs the research and development of new technologies, builds and expands X-COM's bases, manages the organization's finances and personnel, and monitors and responds to UFO activity.The game received strong reviews and was commercially successful, acquiring a cult following among strategy fans; several publications have listed UFO: Enemy Unknown as one of the best video games ever made, including IGN ranking it as the best PC game of all time in 2000 and 2007. It was the first and best-received entry in the X-COM series and has directly inspired several similar games, including UFO: Aftermath, UFO: Alien Invasion, UFO: Extraterrestrials and Xenonauts. A remake of the game, XCOM: Enemy Unknown, was created by Firaxis Games and published by 2K Games in 2012.

X-Men vs. Street Fighter (Japanese: エックスメン VS. ストリートファイター Hepburn: Ekkusu Men bāsasu Sutorīto Faitā) is a crossover fighting video game developed and published by Capcom. It is Capcom's third fighting game to feature Marvel Comics characters, following X-Men: Children of the Atom and Marvel Super Heroes, and the first installment in the Marvel vs. Capcom series. As the title suggests, the game includes characters from Marvel's X-Men franchise and the cast from Capcom's Street Fighter series. Originally released as a coin-operated arcade game in 1996, it was eventually ported to the Sega Saturn in 1997 and the PlayStation in 1998.X-Men vs. Street Fighter features gameplay similar to Street Fighter, but incorporates dual-character selection and tag team-based combat. Each player selects two characters to compete in a one-on-one battle, attempting to defeat the opposing team. The players are given the ability to switch between their characters at any point during the match. The game also incorporates numerous elements from X-Men: Children of the Atom and Marvel Super Heroes.The game was released to generally positive reviews, with critics praising its gameplay and sprite animation quality. While the Sega Saturn port received praise for maintaining the experience of the original arcade version, the PlayStation port was met with mixed to negative critical reception for removing several features, such as tag team battles. The changes were done in response to the technical limitations of the PlayStation. A sequel to the game, Marvel Super Heroes vs. Street Fighter, was released in 1997.

X-Men: Children of the Atom (Japanese: エックス・メン チルドレン オブ ジ アトム Hepburn: Ekkusu Men Chirudoren obu ji Atomu) is an arcade game that was produced by Capcom and released on the CP System IIarcade hardware in 1994.Based on the X-Men comic book, it is the first fighting game produced by Capcom using characters under license from Marvel Comics. Released around the time of the mid-1990s X-Men animated series, the game features voice actors from the series reprising their roles. The game's plot is based on the "Fatal Attractions" story from the comics - players control one of the X-Men or their enemies in their fight against the villain Magneto. They face each of the other characters in the game in best of three one-on-one fighting matches, before battling Juggernaut and then Magneto himself.The gameplay has much in common with Capcom's previous fighting games, Super Street Fighter II Turbo and Darkstalkers. Children of the Atom adds a combo system that features long combos that can even be performed in mid-air. Also featured in the game are various tactical maneuvers, including the ability for characters to roll. Children of the Atom also introduced multi-tiered fighting environments in which the ground would crumble and characters would fall into lower parts of the level. These concepts and the fast pace of the game would provide the basis for Capcom's Marvel vs. Capcom series, which started with the game's successor X-Men vs. Street Fighter.Ports of the game were released for the Sega Saturn, PlayStation and personal computers. Of these, the PlayStation version was not as well received as the other versions, suffering from slowdown and missing frames of animation.

Xena: Warrior Princess is a hack and slash action video game developed by VU Games and published by Electronic Arts for the PlayStation in 1999. A Game Boy Color version was developed and published by Titus Softwarein 2001. A PlayStation 2 version, developed by EM Studios and published by Blast! Entertainment, was released exclusively in PAL territories in 2006. Each version is based on the television series, Xena: Warrior Princess, which aired from 1995 to 2001.

Xevious 3D/G+ (ゼビウス 3D/G+ Surī Dī Jī Purasu) is a compilation of the Xevious arcade games for the PlayStation. The main game is Xevious 3D/G, a port of the 3D polygonal scrolling shoot 'em up arcade game but it also includes accurate ports of the arcade games Xevious, Super Xevious and Xevious Arrangement from Namco Classic Collection Vol. 1. Although not enhancing the gameplay, the player could use the NeGcon controller to tilt the Solvalou.It was released onto the PlayStation Store as a PSOne Classic in Japan on June 26, 2013 and in North America on February 24, 2015.