This is definitely one of the mods of all time

Didn't know there was a DOOM mod for Portal. When the fire and music kicked in all I could think of was RIP AND TEAR!

the moment the fire starts and the rock music kicks in is sooo EPIC

if Glados were manufactured by Black Mesa

That looked painful.

Now this is what they called "Portal 3"

absolute chaos, i love this mod!

Wait...does she actually delete your backup?

So this is what Glados meant when she said she was being sincere at the end of the game.

bro imagine how beefy your computer would need to be to run this

2:44

*goes on a 3 min rant *

1:59

Imagine being a core on Glados and witnessing all of this

2:29

Valve:

Yippee! Excellent post! Rather inspirational. It's a relief that you posted today. Thank you for doing this incredible post.

What the hell am I even watching anymore, a glados bossfight, or hell. xD

1st New Core: Protocol

This mod is perfect for a hard mode difficulty setting in Portal.