While attempting to escape the combine by road, you had an accident and fell down of a cliff. Down there stand a strange facility. You refuged in thinking it would be your only way of surviving. You soon realized it was not a good idea.
Alpha 2.1 of the TSRA. This is still an alpha release, you may experiment issues.
I am currently working on fixing the Lighting issues.
There is absolutely nothing to do but moving around exploring the place.
To play the map you need to move the .bsp file to your Portal 2 maps folder then type ( map abyss ) in the console.
I hope you guys like it. Feel free to give any feedback.