Valve have also kindly allowed us to include their original Half-Life campaign free of charge, playable cooperatively even by people who don’t own the original game! New features have allowed the co-op version of the storyline maps to be reworked in a way that stays true to the original game while remaining challenging for multiple players. “The stand-alone game includes many hundreds of features, fixes and improvements, as well as new maps and content. In it he revealed the release date, reconfirmed the price tag and said what version 5.0, as it’s known, will offer:
The announcement came via the official forums, where original creator Sven made a post on the 17th anniversary of the game.