Microsoft recently unveiled five new games to be included in their backwards compatible roster for the Xbox One; among of which are popular titles "Portal 2," and "Left 4 Dead."

Larry Hyrb, Microsoft's director of programming for Xbox Live, also known as "Major Nelson," has made the announcement official through his twitter account. Hyrb unveiled the newest addition to the Xbox backwards compatibility roster to be "Left 4 Dead," and "Portal 2," along with three others, Engadget reported.

The new addition comes in somewhat a surprise to some fans as Microsoft focused on adding classic titles to its Backwards Compatibility program. The announcement now confirms that fans would be able to relive their experiences with the fan-favorite zombie first-person shooter, "Left 4 Dead," on their Xbox One.

"Left 4 Dead" allows players to take on zombies in a post-apocalyptic world. Gamers would be able to relive their experiences on the current generation console. The game is set on zombie-infested maps, with safe houses along the way. The players progress through sections that divide the map typically into 4 stages, according to the VineReport.

In addition, the popular first-person puzzle game, "Portal 2," is also coming to the Xbox One. The puzzle-based first-person game takes its players into the facilities of the Aperture Science Laboratories, once again.

The mechanical companion, GLaDOS is a familiar character among the gamer community. Xbox One owners will be able to follow GLaDOS on the seemingly peaceful halls of the Aperture Science facility. The game features a single player campaign, as well as a two-player co-op option, TechnoBuffalo reported.

Among the newest additions are "Babel Rising," "Flashback," as well as "Brain Challenge. Previous recent titles included were notably "Deus Ex: Human Revolution."

As shown during Microsoft's E3 press conference, the console is aimed to push limits into the future of gaming, but not without bringing with it its roots. Fans would likely see more Xbox 360 games be included in the backwards compatibility roster.

Tags Left 4 Dead, Valve, Microsoft, Xbox One, Xbox 360