This is Half-Life, the original, from 1998. This is Valve's original game and they won't abandon it. Black Mesa is a fan-made remake. That's a separate game no

This is Half-Life, the original, from 1998. This is Valve's original game and they won't abandon it. Black Mesa is a fan-made remake. That's a separate game not made by Valve, and they co-exist. It does not replace Half-Life.