• Left 4 Dead 3 has been confirmed thanks to a screenshot from a valve employee

Left 4 Dead 3 has been confirmed thanks to a screenshot from a valve employee (Photo : YouTube / White Washed Mexican)

Speculations are rife that Valve may release the game "Portal 3" by the end of 2016. The recent leak from the company's office clearly showed that the game is in development.

The screenshot of the "Left 4 Dead 3" and the "Portal 3" folders was posted by an artist named Tristan Redford, according to Valve Software. He took the screenshot during his tutorial for the Destinations Workshop. However, the screenshot was removed after the rumors of a "leak" caught fire on the Internet.

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If the "Left 4 Dead 3" and the "Portal 3" folders are proven to be correct, it will mark a milestone for Valve. The company is known for releasing only the second part of its games like "Left 4 Dead 3," "Half-Life," "Portal" and "Team Fortress" and it has never released the third part of any game.

"Portal" is a series of puzzle games, which have fantastic entry and exit portals on different surfaces. These were designed to assist the player's characters in completing the puzzles of the games.

Apart from being a puzzle title, the game contains a very solid storyline with a very menacing antagonist, who keeps on threatening the gamers and tries to prevent them from completing the game's mission. Also, Valve will probably have to have think as to where they can place the setting for "Portal 3" because the last game ended on a very conclusive note.

On the other hand, fans feel that Valve is trying to build up some hype for the upcoming "Portal 3" with help from the leak. The leak seemed very deliberate as the user was scrolling in such a way that the "Left 4 Dead 3" and the "Portal 3" folders were seen clearly.

Earlier, numerous references to the upcoming game were found. In 2013, some fans of "Dota 2" were on a tour of Valve's offices and they found numerous references to "Portal 3," which initially ignited the rumors that the game may be in development. "Counter Striker" co-creator Minh Le said in an interview with RGN that the game is in development and it is progressing well.

Watch the video to know more about the upcoming game here: