The Neon Faction was an available Faction in the game that only appeared in the Closed Alpha. The Neon Faction could not be used in sandbox mode until all five of the Neon levels were completed in the campaign. The Neon faction made up levels 21 - 25 of the campaignin the Closed Alpha. Neon faction units were generally considered the most powerful faction (besides some of the units in the Misc. Faction) for its cost-to-effectiveness ratio.
Neon - The map appeared as a semi-flat map with five large pillars, one in the center, one in the back, and three on the bottom right part of the map. The map was mainly a purple color. It also had small pillars on the edges of the map. In the left part of the map, there were four large tubes near the edge and only one tube on the right. Sometimes, the large pillar in the back would shoot some kind of Neon Cube which passed through the hole of the pillar in the center.
With the full release, the Neon Faction makes its return; however, only weapons, attire, and radiant color options inspired by this faction have been introduced to the Unit Creator.
The Neon's Faction name is a reference to their glowing equipment, resembling neon lighting.
It is possible that Landfall took some inspiration from sci-fi or fantasy movies while creating the units, for example, the Energy Sword and the Energy Sword Master's weapons greatly resembling the Lightsaber from Star Wars.
The Neon Faction is the only faction from the Closed Alpha to have no units from it return for the full release (Though, weapons from the faction have been added to the Unit Creator.)