The theme was Ancient Technology, so making a game for ZZT adhered to the theme by definition.

The game plays like one of the original ZZT worlds, but is happy to embrace more modern game design concepts. (You won't find constant softlocks if you make a mistake like in Town)
ZZTer DavidN recorded a live playthrough as well: https://www.youtube.com/watch?v=IIm_fcfnj6s
You can download it here: http://ludumdare.com/compo/ludum-dare-3 ... &uid=51438
