Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Dungeonizer – Easy Random Dungeon Generator Free.
Dungeonizer – Easy Random Dungeon Generator v1.4.2
Dungeonizer is a random dungeon & level generator script for Unity. It’s working much simpler than other generators, you can easily create tile based 2D or 3D RPG dungeons using this add-on.
Full Unity5 and Mobile support added
Advanced algorithm faster than ever
Custom room support added. You can create custom rooms in any position of dungeon. New: Check out this awesome Dungeonizer tutorial from John McGarey Tileset included in package is free to use for Dungeonizer customers Complete population of mobs, chests, doors, goals – whatever you want, automatically!
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Our purpose is creating a very basic and customizable algorithm for low budget games. And we are doing this very well:)
Current features: You can use Dungeonizer to create dungeons in editor mode or on the fly.
Able to use your own walls and floor prefabs.
Generating start prefab (usually your player prefab) and exit point.
Adjustable tile size.
Customizable room sizes and count. We tried 1000’s of rooms in single dungeon. So much speed!
NewCustom corner prefabs! And they rotates
Supports automatic population of dungeon with custom prefabs like enemies,chests and decorations!
Supports creation of doors.
3D support! (yes still experimental but okay) Developer friendly!