Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Tidy Tile Mapper Free.
Tidy Tile Mapper v1.4.6
Tidy Tile Mapper is an easy-to-use, intuitive and powerful tile-based game creator for Unity, perfect for creating both 2D and 3D tile-based games.
See the website, watch the videos.
API documentation now live! Check it out on the API site.
Construct your 2D or 3D tiles with the Block Editor and paint your level with the Tile Mapper.
Fast painting tools
Click-and-drag to paint, paint random, cycle blocks and cycle variations. Blocks orient themselves automatically! Grass knows that it’s grass.
Give it the gift of life
Includes pre-built, paintable AI characters and player controls. Paint, press ‘play’, and watch them go!
Paint vertically, paint horizontally – paint with whatever tile size you wish.
Do it live!
Runtime API included – get your procedural generation mojo working.
Create and import your own assets, or use our included block-set.