Running along on a previous idea about short random content...
One particularly creative AD&D type came up with the idea of the 5 room
dungeon. This worked into my idea of allowing players..ie non-imms to code
simple encounterables.

Feasibility aside, I ran across this page which set out as a goal..
the 1 page dungeons. Of course the quality of some are.. sub par.. but
the idea is an interesting one.

http://www.sageadvice.eu/2016/03/22/need-an-adventure-one-page-dungeon/