@@spicymonke5193goldsource is the original game engine that the first game ran in. He's saying you're not playing the original. And yeah this looks a lot like Half Life Source to me instead
thank you for this tutorial, i will do this next time and will try this out IRL if somebody runs away and doesnt listen to me p.s. this comment IS A JOKE IS A JOKE ITS JOKE
Perdi 20 minutos intentandolo, y no es verdad. Pero fue divertido itnentarlo y ver como no funciona (version original) I spent 20 minutes trying this, and is not posible. But was funny try it and see as it dont works (Original version)