gm echoes07 addon

Echoes
Return to Black Mesa in this brand new mod for the 20-year old Half-Life. You think it’s just another day at work – but of course it’s that fateful day of the resonance cascade. Run, think, and shoot your way through the Black Mesa Research Facility as you’ve never seen it before, so you may live another day!This Half-Life mod will let you experience the Black Mesa incident from a different perspective, with some insights into mysterious events which Gordon Freeman was not present for.