Sierra Studios has announced a PC version of Half-Life: Blue Shift, the single-player episode in the Half-Life series originally developed for the Dreamcast console by Gearbox Software. The game is scheduled for a release in June this year, will also include a High-Definition Pack for all previous games, and the official site is online sporting the first screenshots and a movie trailer. Here is an excerpt from the full press release:

Blue Shift is an all-new single player episode surrounding the Black Mesa security guard introduced in Valve's classic action thriller, Half-Life. In development by Gearbox Software, creators of the critically acclaimed Half-Life(r): Opposing Force(tm), Blueshift also contains the Half-Life HD Pack, which automatically upgrades the weapons and characters of all the games in the Half-Life saga with new high definition content.

"Blue Shift was created for Half-Life fans everywhere and we're very pleased to be able to bring it to the PC," said Randy Pitchford, Director of Gearbox Software. "In addition to the entirely new Blue Shift episode, the package also includes support for online play and the Half-Life HD Pack, which brings all Half-Life games to the next generation of graphics technology."