Lots of players are also armchair designers, so we like to present interesting tools as they appear. One that recently went up on Steam is the voxel-oriented RPG In A Box ($29.99). It has that interesting 3D-yet-8-bit vibe that make the Dragon Quest Builder games so appealing.
There are a lot of interesting tools out there for a variety of skillsets, and greatly differing levels of flexibility. Some considering are RPG Maker MZ and MV (who knows what the letters are meant to stand for), Zelda Classic for action games, and for more flexible tools it might be worth checking out Godot, or maybe creating something with Python and Pygame.