With the Citadel on the verge of a catastrophic meltdown, Barney and Gordon Freeman are trying to escape City 17 when their plans take an unexpected detour.
A professionally done but PAINFULLY short modification. Although it's clear that this is more a portfolio piece rather than an actual full expansion. Sebastian is a small "What if" scenario were Barney takes Alyx's place as you escape City 17. Despite it's aforementioned short length, and the fact that Barney is gone through most of the game it's still well worth the download.