Reggie! is an easy-to-use and full-featured level editor for New Super Mario Bros. Wii, created by Treeki and Tempus.
Features
  • Terrain editing
  • Sprite editing, with over 1,200 properties available
  • Entrance editing
  • Image display for over 200 sprites
  • Background options, with image previews
  • Zone options
  • Zoom, Grid and Autosave
  • Settable level information
  • Resizable and interactive level overview
  • Location editing
  • Path editing
  • Cross-platform (Windows, Linux, Mac OS X)
  • Open-source (GNU General Public License v2)
  • Riivolution loader for custom levels with original discs
Screenshots (click to enlarge)
Screenshot of World 3-3 in Reggie!
World 6-1 screenshot World 7-3 screenshot World 8-Doomship screenshot
World 5-1 screenshot World 6-2 screenshot World 7-6 screenshot
Download
Reggie! release 3 - April 2nd, 2011:
Windows (zip) · Mac OS X (dmg) · Source/Linux (zip)
17683 downloads (8460 for Windows, 4689 for Mac, 4534 for source)
For help and support, please visit the RVLution Forums or the #NSMBW channel on Freenode IRC (webchat).
To dump the required files for Reggie! from your game disc, please use the Reggie! Dumper app.
GitHub project (for developers): Reggie
File Depot
Upload your Reggie! creations at our File Depot! The NSMBW File Depot is a website where you can share and download custom levels and tilesets.
German Translation - Version 1.034
A German translation of the current version of Reggie! is available, created by joietyfull64. You may download it here: Windows (zip) · Source/Linux (zip)
2037 downloads (1629 for Windows, 408 for source)
For more information, including translated terms and other documentation, please see the forum thread for the translation.