"Stranded" is a Half-Life 2: Episode 2 mod which branches out a different side of the story where as soon as Alyx, Gordon, Eli and Dog walk out to the helicopter to leave and find the Borealis they are ambushed by creatures not seen before. Maybe a creature from Xen? Nobody knows. Gordon then finds himself somewhere, not knowing where he is.
Since the configuration of the mod files & the main menu is finished the development of the maps have started! Hooray! Follow me on twitter for sneak peeks; @surelynotlucas. Suggest map ideas in the comments!