"Half Life 3" may have been confirmed after an alleged leak coming from Valve themselves.

The Motoring Crunch has reported that they have uploaded some information about "Half Life 3" on the Steam Database but has then deleted it after gamers found the entry and spread it online.

"Valve unofficially made an announcement on the highly anticipated title. By unofficial, the confirmation was made through a leak by Valve on Steam. For those who are unaware of the havoc that is going on, Steam was updated yesterday and it saw the addition of App 323900. The amazing part is with the fact that App 33900 came out with Half Life 3's logo. This has got the fans buzzing loudly as for the first time ever; a leak from Half Life 3 actually came from Valve themselves. Of course, Valve was notified of the buzz and has hence removed the App from the listing" as was noted on the report.

Meanwhile, it has confirmed that Valve would be attending GDC 2015 and they plan to showcase the Steam Machine while rumors of "Half Life 3" being announced at the event surface.

"We're planning a very large presence at GDC with Steam Machines being front and centre," the company said to Game Informer.

It should be noted that the Huffington Post UK reports that "Half Life 3" could be confirmed on GDC 2015.

"According to GDC, the company will be using live technical demos to showcase the new standard which means they'll be using actual games, and by actual games we of course mean Half-Life 3 (probably not). While it's unlikely that Valve would announce such a game at a graphics performance panel, the fact remains that if it were to be made, Valve would want it to set a visual benchmark for the next-generation of games" as stated by the report on Huffington Post UK.