RPG²

In RPG², the world of Rpangaea is under siege by a wicked creature operating from somewhere within the shadows of the sinister swamplands. Only an RPG, an ancient automaton built for war, is capable of stopping it, but be careful: wicked monsters have long roamed Rpangaea, causing destruction and bloodshed in their wake.

Three audit stones are strewn across the land, and can be collected to increase your power, though it is optional to do so. In fact, barring the tutorial dungeon, you can pretty much bypass the entire game and face the final boss if you know what you're doing.
In essence, it's pretty much exactly what I imagine Kadokawa imagined players would make with RPGMaker 2003: a simple little Dragon Quest homage with a few new ideas sprinkled in.