Newest Hacks

Newest Translations

Star Soldier Star Force Seiken Acho Rally-X

Newest Utilities

BARF! Tilemap Studio Lightweight Checksum Calculator Valhalla

Newest Reviews

Mega Man II Music Improvement Mega Man X2 Relocalization SMB3 RELOADED MegaMari

Newest Homebrew

Rex Run for Game Boy DeadlyNeuroEf Circle Boy Nova the Squirrel

Featured Hack Images

Super Castlevania 2 Anchors Aweigh! There can be only one! Simon's Redaction

Featured Translation Images

Elysion Rudra no Hihou Final Fantasy Type-0 Shikigami no Shiro

Recent Updates

General Information

(1 to 1) of 1 Results

Another new SMB3 Editor

07 July 2019 1:16PM EST - Update by mchlnix

Utilities News - RHDN Project Page

Almost 12 years after the last update to SMB3 Workshop a new Editor emerged with the goal of rising from its ashes.

With permission of the original Workshop creator, Hukka, a reimplementation project grew into a complete new Editor providing several quality of life improvements for Level creation.

These include:

  • selecting and moving of multiple objects at once
  • cut/copy/pasting of objects
  • undo and redo of most manipulations
  • more intuitive level pointer manipulation
  • support for vertical levels
  • instant header editing

and more…

Although not all features of Workshop are implemented yet and some quirks have not yet been fixed, after 5 months of development a beta version of the 1.0 release is available for a wider audience.


There is a Windows and Linux standalone version available with Mac users having to go the slightly higher effort route of downloading Python and one dependency as described in the Readme of the source code.


For enthusiasts who want to follow the releases more closely the GitHub page offers the source code, the newest versions and an issue tracker for bug reports and feature requests.

For direct contact, reach out to Michael on the SMB3 Romhacking Discord

Contributors are also welcome, as Python is easy to pick up, compared to other Programming Languages.