Combine Interface



Combine command panels are found throughout City 17, Nova Prospekt, and the Citadel, and have multiple purposes. The command panels found in City 17 are generally used to open and close gates, and they may also be used for communication, as seen when Barney Calhoun communicated with Doctor Isaac Kleiner in the opening levels in the game. The majority of command panels found in Nova Prospekt are used to work the systems around the facility – such as gaining access to surveillance cameras or transporting prisoner pods. They are also used to work the teleporter that Doctor Judith Mossman helped build for the Combine. The command panels in the Citadel are only seen conveying Breencasts, while they probably possess other functions also. When looking closely at some of the modules, the words "Combine Maintenance Access Command Module" written in English can be seen.

Ordinarily, command panels can only be operated by Combine personnel. However, Alyx is seen using an EMP device to assume control of the panels. Barney has a limited Civil Protection clearance, which allows him to operate some, but not all of the panels. In short, command panels can be seen as futuristic computers.