I have completed my adaptation of Atari 2600 Adventure using Panda3D. The game adapts the original, as well as two earlier Adventure tributes, Craig Pell’s Indenture and Davetron-5000’s Adventure for C++. The Panda version includes saved games, many ‘cheat’ functions, and a fully-featured game editor written in Tkinter. The game uses only simple text-based files for its resources (aside from sounds), and these resources can be modified using the editor. The game has been made using Panda3D 1.8.1. I’ve spent a couple of weeks testing and debugging, so hopefully no bugs or errors are present, but if any are found I will try to fix them. 
http://www.morphography.uk.vu/~cagepage/2014/panda3D/Adventure_P3D/Panda3D_AdventureGame.zip
