Rampart was found since the last time the online guide was updated.

Rampart Prototype for the Atari 7800 was found. Proof: http://www.atariprotos.com/7800/soft...rt/rampart.htm

Here is a list of Atari 7800 homebrew games that are not on the dp online guide and when they were first released:

Asteroids Deluxe - released in 2007
b*nQ - released in 2007
Beef Drop VE - released in 2007
Failsafe - released in 2010
Jr. Pac-Man - released in 2009
Meteor Shower - released in 2011
Space Duel - released in 2007
Space Invaders - released in 2008
Super Pac-Man - released in 2009
Wasp! - released in 2009
Worm! - released in 2010