Fans have matched certain plot elements detailed in the summary topreviously leaked concept artfor an unreleasedHalf-Lifegame.

So what is the plot all about?

Alyx and Gordon believe that the vessel should be destroyed before it falls into the hands of the Combine.

Others think it might still be used to turn the tide of battle.

Along the way, their helicopter is taken down by unknown forces believed to be Combine-related.

Soon thereafter, they discover that the Borealis has seemingly become unstuck from time.

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What happens next is quite fascinating.

The finale sees Judith and Alyx argue over whether the ship should be destroyed.

She walks away from the explosion with him.

As Laidlaw warned, this version of the story does end on a bit of a cliffhanger.

Matthew Byrd is a staff writer forDen of Geek.

You canread more of his work hereor find him on Twitter at@SilverTuna014.