It's been 17 years since the Sven co-op mod for the original Half-Life was released. What were you doing with your life back then? Probably worrying about Y2K or celebrating the newly-established euro currency. After official permission was handed down by Valve, the mod finally has its own dedicated spot on Steam. And best of all, it's free.

Half Life (Sven Co-Op), the cooperative version of the original Half Life is coming up on its 15th anniversary soon. To celebrate the occasion, the developers of the mod have recently announced their plans to provide the game’s co-op experience as a stand-alone version via Steam.