Insane New Speed Run Record - Half Life in 20:41

Few days ago, the channel by the name of quadrazid, uploaded a video showing a Speed run of Half Life, in just 20:42.

This is what the video description says:

"Starting back in the summer of 2010, the estimated time for this run was thought to be roughly 27 minutes. However, after almost four years of painstaking planning, theorycrafting and execution, we have arrived at our final time, smashing all of our wildest expectations.

Truly, this has been a pleasure to watch and relive all those moments, in a matter of minutes. Originally playing this way back, it took me months. Though I was just a kid, it is one of the best games I've played.

Now, the question remain , when is HL3 coming?