Satellite Defense (ColecoVision)# 2153CL

Satellite Defense is an early version of the game that would be released as War Room. A prototype bearing the name "Satellite Defense" on its title screen was discovered in a cache of prototypes in Michigan in 2013, which were owned by a former Philips salesman. Included in the discovery was another prototype board labeled "Nuke." Despite being ColecoVision games, some boards were found in Odyssey² cartridge shells – not an uncommon occurrence for Probe 2000 prototypes.

According to the game's developer, Bob "RoSHa" Harris, he originally wanted to call his creation "Nuke, After Nuke" – a reference to the attack and post-attack phases of the game. However, one member of a focus group comprised of six teenagers made a comment about the word "Nuke," and Philips interpreted this as a sign that teenagers didn't know what "Nuke" meant. (Editor's note: speaking as someone who grew up in the '80s, this is absurd; Cold War kids absolutely were familiar with "Nuke.") Philips decided to call the game "Satellite Defense," and according to Harris, this name was used at the 1983 Consumer Electronics Show. Harris disliked that name and eventually the game was re-titled War Room.

The Satellite Defense prototype was sold on the auction site GameGavel in late 2013.