Actually Ed

DROD, an incredibly quirky, incredibly good, and some incredibly odd design decisions made in the first games. Basically, it's a turn based/tile based puzzle game where you have to kill all the monsters in the room and exit it. It had almost no marketing behind it, and the series was somehow held up to 6 different games with support from incredibly dedicated fans. It seems like a perfect fit for the Game Dungeon (and not just because most of it takes place in one)