Created by Lever Softworks and called Half-Life 2: Aftermath, the project made up of leaked maps and prototypes.
A project which combines content from the cancelled Half-Life 2: Episode 3 has been released in the wake of Marc Laidlaw’s “Epistle 3” posted last week.
This was the working title for Half-Life 2 in 2005 before it was changed to Half-Life 2: Episode One and released in 2006.
According to the notes posted on moddb, it contains 11 experimental levels created by Valve during 2012 and 2013.