Glutton is a puzzle game based on the game Greed. When I first read the description, I wasn't convinced it was even much of a game. I coded up a version in BASIC from scratch for the Dragon (should run fine on a Tandy too). Available on GitHub as usual.
The basics of the game are that moving onto a numbered square moves you n steps in that direction. You must stay on the board and cannot step on a square twice. Keep playing until you cannot make a move. Get a high a score as possible.
It's oddly addictive. My highest score is 251. Have fun!