Like much of the game's action, the more impressive visuals take place below ground. Above ground consists of a map with a group of dots you can navigate between. Interaction with townspeople is limited to static images and menus.
If Dungeon Maker's below ground visuals have one major flaw it is that they are flat. Very little jumps out at you other than the fact that you can alter their look by applying new textures. Plain stone walls can become wood-lined corridors and bare rooms can become lavish bedrooms, treasure troves or other specialized rooms. None are particularly impressive, at least visually, but the flexibility makes up for it - something that cannot be said for the characters inhabiting your world.
Enemies and your character are very utilitarian. They do their job well at differentiating what things look like, though nothing about them is particularly impressive. You character shows some minor variance in his animations, mostly when it comes to different attack types. Most notable are heavy attacks that run slower than normal attacks and have a bit of weight to them - so rather than doing more damage, they actually look like powerful blows.
Though the game has a very medieval feel visually, most of the background music feels more at home in a Mega Man X game. If you just want to listen to fast, up-tempo music you will probably like it; if you want something more inline with the time period, you'll hate it.