DunGen or Dungeon Architect in speed level design?

[Gekigengar]

Try this for both 3D & 2D

Map Graph – Node-based Random Map Generation

Map Graph is the plugin for all of your level generation needs. Map Graph is more than a procedural level generator. It doesn’t just provide you with a single level generation solution, with limited customization options. Instead Map Graph offers you the tools to easily create your own level generators, opening up a wide range of customizations and enabling you to create your own unique level generators, that perfectly suit the needs of your own unique game. Map Graph is now available on the A…