| Program |
Description |
Download
|
| SNASM68K
|
Command-line assembler for the Motorola 68000 written by Cross Products. ASM68K is generally preferred. (Not compatible with 64-bit Operating Systems)
|
Download (info) (145 kB)
|
| ASM68K
|
Command-line assembler for the Motorola 68000 written by Psy-Q (Psygnosis) and SN Systems. Used to make many official Mega Drive games.
|
Download (info) (55 kB)
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| clownassembler
|
Open-source, multiplatform clone of ASM68k. Can also be used as a library.
|
Download
|
| Sega Genesis C Compiler
|
Allows for C code to be compiled and executed on the Sega Mega Drive.
|
Download (info) (336 kB)
|
| Esrael Neto Assembler Editor
|
Motorola 68000 Editor written by Esrael.
|
Download (info) (1.62 MB)
|
| 68kd
|
Command-line 68000 disassembler. IDA Pro is generally preferred.
|
Download (info) (42 kB)
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| IDA Pro
|
Popular disassembler used in reverse engineering software. It works on code generated for a wide variety of processors, including the Motorola 68000 and Z80 processors used in the Mega Drive.
|
Purchase
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| Ghidra
|
Another popular, fully-featured disassembler. This one is open-source and free to use.
|
Download
|
| ConTeXT Highlighter
|
A Motorola 68000 syntax highlighter for the ConTeXT text editor. Written by Ambil.
|
Download (info) (2 kB)
|
| GEdit Highlighter
|
A Motorola 68000 syntax highlighter for the GEdit text editor. Written by SegaLoco.
|
Download (info) (1 kB)
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| Notepad++ user-defined languages
|
A Motorola 68000 syntax highlighter and a Zilog Z80 syntax highlighter for the Notepad++ text editor. Written by FraGag.
|
Download (info) (2 kB)
|
| Program |
Description |
Download
|
| The Sega Data Compressor
|
A frontend for a batch of compression/decompression programs for the Nemesis (art), Kosinski (level art, mappings, etc.), Enigma (special stages, etc.), and Saxman (music in Sonic 2) compression formats.
|
Download (info) (81 kB)
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| Sonic Data Compression Tool
|
Alternative frontend to The Sega Data Compressor, with all four compression formats in one window.
|
Download (info) (56 kB)
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| Nemesis MD Programs
|
Primitive version of the above. A small feature worth noting though is the Nemesis art searcher, which allows you to search for Nemesis compressed data in other games that may use the compression format.
|
Download (info) (133 kB)
|
| Sega
|
TSDC in command line form, now using the next generation portable KENS libraries.
|
Download (info) (609 kB)
|
| KENSSharp
|
A cross-platform compressor/decompressor, written in C#. Similar in functionality to the Sonic Data Compression Tool.
|
See page
|
| MacENS
|
A port of KENS to MacOS X.
|
Download (32-Bit) (info) (268 kB)
Download (64-Bit) (info) (265 kB)
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| mdcomp
|
Cross-platform compressor/decompressor for various formats. Offers optimal compression for LZSS formats and near-optimal compression for the Nemesis format. Also available as a Windows shell extension.
|
See page
|
| Program |
Description |
Download
|
| WinDiff
|
Windows utility for comparing files and folders and making patches to them. (just like the UNIX "diff" command just with a GUI)
|
Download (info) (73 kB)
|
| WinMerge
|
Windows utility for comparing files and folders and making patches to them. This one even applies DIFF patches as well. Recomended for Windows
|
Download (info) (3.34 MB)
|
| Diffutils
|
A cross platform set of tools for making .diff/.patch patches, very useful with disassemblies. Contains a win32 port of the UNIX diff command. Place all the dependancies in the System32 folder for anything above Windows ME, and the System folder for anything Windows ME and below. Tool is very good for making patches, but it is recommended that you also download Patch if you want to apply them too. Recommended for Linux, Mac, BSD, etc.
|
Download - Programs (Windows) (info) (445 kB)
Download - Dependancies (win32 only) (info) (686 kB)
Download - Programs (source) (info) (762 kB)
|
| Patch
|
A cross platform set of tools for applying .diff/.patch patches, very useful with disassemblies. Contains a win32 port of the UNIX patch command. Tool is very good for applying patches, but it is recommended that you also download Diffutils if you want to make them too. Recommended for Linux, Mac, BSD, etc.
|
Download - Programs (Windows) (info) (123 kB)
Download - Programs (source) (info) (182 kB)
|
| Program |
Description |
Download
|
| Flex 2
|
The successor to Flex and SonMapEd, for Sonic 1, Sonic 2, Sonic 3 & Knuckles, and many other Genesis games via scripts. It is a multi-purpose art and mappings editor with support for drawing sprites directly as well as importing/exporting sprite sheets. Recommended.
|
Downloads here
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| SonED
|
The last version of the original SonED. SonED is a level art, level mappings, level layout, level palette, as well as other level aspects, editor. This tool is a bit outdated, and is not recommended if you want to make something more advanced.
|
Download (info) (405 kB)
|
| SonED2
|
A newer, sleeker, more featured incarnation of SonED designed for editing split disassemblies of Sonic games via a unique "projects" system. Boasts a simplified art editor, as well as a new collision editor. If you learn to use this, it's definitely worth using over the original. Recommended.
|
Download (info) (1.28 MB)
|
| SonLVL
|
An alternative to SonED2, for Sonic 1, Sonic 2, Sonic 3 & Knuckles, Sonic & Knuckles Collection and Sonic CD for PC. Recommended.
|
Downloads here
|
| Esrael Sonic Editor
|
A multi-purpose utility that supports a wide variety of editable aspects - Special stages, level layout/art/mappings, title cards, level select names, palettes, etc. Being an earlier, discontinued version of the program, it supports some things ESEII does not. It's best to have both.
|
Download (info) (963 kB)
|
| Esrael Sonic Editor II
|
Enhanced version of the above, with newer features such as a level porter, a newer art editor, and a built in hex editor. This tool is outdated, and isn't really recommended.
|
Download (info) (1.19 MB)
|
| Chaos
|
Level editor made by Brett Kosinski for Sonic 2. No longer supported.
|
Download (info) (16 kB)
|
| Chaotix CSE
|
Edits character stats in Knuckles Chaotix.
|
Download (info) (9 kB)
|
| S.L.E.E.P.
|
Primitive level editor for Sonic 2 savestates and the Sonic 2 ROM. No longer supported.
|
Download (info) (43 kB)
|
| ChaoSaX
|
ROM hacking suite by Magus (formerly Chaos) and saxman. The entire suite is made up of multiple programs for modifying different aspects of Sonic ROMs. Its user-friendly GUI makes it very useful for beginning hackers.
|
none
|
| GerbilSoft ROM Hacking Studio
|
Basic ROM editing utility by GerbilSoft which handles special stages, title cards, palettes, etc.
|
Download (info) (294 kB)
|
| Sonic HackingWiz Pro
|
Older version of GerbilSoft ROM Hacking Studio. Capable of certain functions GSRHS is not.
|
Download (info) (428 kB)
|
| Sonic Tweaker
|
Edits demos, water, text and palettes for Sonic 1, 2, 2b, 3K and Chaotix.
|
Download (info) (263 kB)
|
| Sonic Advance Editor
|
Level editor and viewer for Sonic Advance.
|
Download (info) (14 kB)
|
| SADXTweaker
|
Edits many different things in the PC version of Sonic Adventure DX.
|
Download (info) (378 kB)
|
| HeroesTweaker
|
Edits some data in the executable for the PC version of Sonic Heroes.
|
Get from igorseabra4's Github
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| SADXLVL
|
Attempts to be the SonED or Lunar Magic of SADX hacking. Can move level parts, edit SET files, and change various other level-related things.
|
Download (info) (2.24 MB)
|
| SADXPCTools
|
A new set of programs for the Sonic Adventure series of games.
|
Download
|
| Program |
Description |
Download
|
| Sonik Sprite
|
Paint-esque uncompressed sprite editor for Sonic 1, Sonic 2 (beta/final), and Sonic 3. Supports assembled versions of all sprites, making art editing jobs easier for you. Also supports a scripting system, so you can add your own sprite entries if they aren't currently supported (for ANY game, by the way).
|
Download (info) (139 kB)
|
| Tile Layer Pro
|
General uncompressed art editor for multiple platforms, including Genesis. Works by browsing the ROM and editing the art in 8x8 blocks, which can be put together via the Tile Arranger for easier editing. Essential for editing compressed art (after being decompressed, of course).
|
Download (info) (193 kB)
|
| TilEd
|
Tile Layer Pro alternative with many of the same features.
|
Download (info) (237 kB)
|
| Fatilety
|
Another Tile Layer Pro alternative.
|
Download (info) (200 kB)
|
| Tile Molester
|
Another Tile Layer Pro alternative. Written in java.
|
Download (info) (448 kB)
|
| Sonic Molester
|
A modified version of Tile Molester, updated with features intended for Sonic rom hackers, by Sonic Hachelle-Bee
|
[1]
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| ChaoSaX-Pal
|
A palette editor for Sonic 1-3K. Supports, copying/pasting palettes as well as easy editing. Recommended for beginners and experienced hackers alike due to usefulness.
|
Download (info) (11 kB)
|
| Kraminator Graphics Pack
|
Command line tools for converting between GIMP palette format (*.gpl) and raw Megadrive/Genesis format (*.bin). Now you can use the Gnu Image Manipulation Program (GIMP) to do color palette hacking and thus it has become way easier. If you know how to use gimp, then this is very highly recommended. Both 32 bit and 64 bit versions exist. Source code now available. You will need meson and ninja to build this package. The link in this description is for the Windows installer for both of them, but you can likely use your package manager on Linux and BSD, or brew on your Mac, or even pip if you already have python to install meson and ninja.
|
Download (win32) (info) (1.02 MB) Download (win64) (info) (981 kB)
Download (source, needs meson and ninja) (info) (15 kB)
|
| HivePal
|
Another palette editor. Similar to ESE in appearance, but takes a more graphic approach to color matching and choosing. Also includes a palette browser, so you can easily find palettes in any ROM, and subsequentially edit them.
|
Get at Sega Retro
|
| PalEd
|
Another palette editor for Sonic Sega Mega Drive ROMs.
|
Download (info) (17 kB)
|
| HBGDRGB2GBA32XCC
|
Basic utility that converts RGB color values to the decimal format used by both the Sega 32X and the Game Boy Advance.
|
Launch (info) (47 kB)
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| NineKolor
|
Program that allows one to see the RGB values of each pixel in a specific image. It gives both decimal and hexadecimal values.
|
Download (info) (6 kB)
|
| PCXpal
|
Utility that can load images, savestates and Paint Shop Pro palettes, then output as Tile Layer Pro, Paint Shop Pro or Mega Drive palette information.
|
Get at Sega Retro
|
| Palette Converter
|
A small program to convert palettes
|
Get at Sega Retro
|
| Chaotix Art Editor
|
Frontend for editing art in Chaotix.
|
Download (info) (26 kB)
|
| Gen-SMS
|
DOS utility converting Genesis graphics to SMS format, so they can be edited with Tile Layer Pro.
|
Download (info) (6 kB)
|
| PalSwap
|
Tool to swap around palette indexes in an uncompressed 8x8 tiles file.
|
Download (info) (9 kB)
|
| RotSprite
|
Program that accurately rotates sprites at non-90 degree angles for use in games.
|
Download (info) (42 kB)
|
| Sonic Display Editor
|
This program allows you to edit the on-screen display in Sonic 1 and Sonic 2.
|
Download (info) (6 kB)
|
| ImaGenesis
|
Image to tile converter and manipulator. Works with a variety of formats.
|
Get at Sega Retro
|
| PlaneED
|
An editor for Plane mappings.
|
Download (info) (202 kB)
|
| Align Sprite
|
Utility that aligns a bitmap of a sprite up and blank out the empty tiles, making it suitable for importing to SonMapEd.
|
Download (info) (8 kB)
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| SCDPCspr
|
Edits sprites in Sonic CD PC.
|
Download (info) (40 kB)
|
| SCDPCscr
|
Edits tiles in Sonic CD PC.
|
Download (info) (39 kB)
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| GetArt
|
Converts bitmap images to tiles and plane mappings.
|
Download (info) (10 kB)
|
| GetArt.NET
|
Converts images to tiles and plane mappings.
|
Download
|
