Science core's Theme audio - Afterword Mod for Portal 2

Afterword is an expansion to the current storyline of the portal universe. In fact, we are trying to explain what happened immediately after the events of portal, how aperture had changed. Everything is thrown into chaos, and without GLaDOS to regulate the system Aperture Science becomes unpredictable and unstable. You will play as Sarah another test subject trapped in the facility. After Chell had escaped test chamber 19, GLaDOS awoke Sarah to satisfy her testing euphoria while she was trying to convince Chell to return to the testing area. But alas, GLaDOS was destroyed and Sarah left alone in the Enrichment center. So, Portal ends and our story begins... with a little friend named Green. Lots of new test-chambers, puzzle elements and an emotional story are waiting for you!