Sandbox Universe

The Sandbox Universe, also known as The Server, is an alternative reality composed of many characters past and present, regardless of whether or not they are deceased. Things can be twisted and changed depending on who has control.

Nathan Johnson was thrown into this reality by Lord Gaben and The G-Man as punishment for his incompetence and for constantly screwing with their plans in the main universe. Nathan managed to return to his reality, leaving Agent X to fill in as the "main character" of this world.

History
The world is a duplicate of the HL Universe, but where characters can do whatever they please and build whatever they want. It also contains many other pocket realities for "visitors" to do as they please. Aside from the Combine invasion, there was also a great war in this reality dating back to the mid-2000s in which Mingebags tried to take control, although they were eventually defeated.

A copy of the terrorist known as The Mole operated in this reality, and began to hide out in a bunker in the mines underneath the Outlands, where he threatened to cause the reality to crumble unless his demands were met. He teamed up with a zombie Wallace Breen and a zombie Zara Zimmerman, who helped him out with his plans. The Mole's enemy Agent X arrived at the hideout along with cat versions of Alyx Vance and Gordon Freeman to stop their plans, and even had Wallace Breen's son Charlie kidnapped to be used as a bargaining tool. This forced Breen to step down. Before Mole could destroy the reality, his head was blown off by Agent X.

Inhabitants

 * Agent X
 * The Mole
 * Zombie Breen
 * Zara Zimmerman
 * Dark Freeman
 * Alyx Vance (three versions: adult, child and cat)
 * Cat Freeman
 * The C-Man
 * Charlie Breen