All of Deater’s stuff is top-notch

The author's port of Myst to the Atari 2600 is even more impressive in my opinion: http://deater.net/weave/vmwprod/myst_vcs/

Page is http but it has so many jumping off points to YouTube and elsewhere. Pushes the limits of what can be done on apple II visually. I watched the speed run and a few others - extremely high delight level