Here be four bits of dragons: the Mattel D&D Computer Game and the TMS1100
oldvcr.blogspot.com
oldvcr.blogspot.com
You press on the square you want to go to and if there's a wall in the way it makes a noise. Really felt like creeping around in the dark. You had to really think about what was going on to not lose track of where you were. There was an advanced mode with 'doors' that were sometimes there and sometimes not.
There was a slow creepy 'you have woken the dragon noise' that really let you know you were in trouble
I never bothered to open it up and see what was inside it. Cool post.
While my game is long gone, I still have the little metal figurines of the dragon and the treasure chest.
https://archive.org/details/intv_Advanced_Dungeons_and_Drago...