Title  | Author | Description | Category | Platform | Game | OS | Ver | Date |
|---|---|---|---|---|---|---|---|---|
 Cmos 6502 | Iondogatus | Cmos6502.xls it is (in general) Slow Disassembler with fully open source, support alternative Intel code, and support Chr banks disassembler, like tile molester or tile layer pro. It write inside msoffice excel VBA 6.0, therefore it must be compat…. | Assembly Tools | NES | N/A | Win | 0.9 | 31 Dec 2019 |
 ConsoleIDE | yellokrow | ConsoleIDE currently supports development of NES games. The IDE comes with a text, graphics, and palette editing abilities. Also after you’re done creating a game all that is left is to build the project within the IDE and launch your game in an…. | Assembly Tools | NES | N/A | Mac OS X | 0.0.1.a | 28 Jul 2017 |
 Contra Director | SalHe | Contra Director is a nearly complete level editor. It can display level’s layout and enemy’s position, but can’t edit the enemy’s locations at the moment. Now Contra Director can adapt the US version perfectly but may have issu…. | Level Editors | NES | Contra | Win | V20160507 | 07 May 2016 |
 Contra Level Editor | Kurtis2221 | This editor is made for Contra for the NES. You can almost edit all levels, except level 2 and 4 and only the level elements. | Level Editors | NES | Contra | Win | 0.32a | 28 Feb 2013 |
 Cowabunga | Dan | Cowabunga is a level editor for the NES game, Teenage Mutant Ninja Turtles. Cowabunga currently has the following features:
| Level Editors | NES | Teenage Mutant Ninja Turtles | Win | 0.1 | 03 Mar 2005 |
 CryEdit | Dwedit | A Crystalis level editor. The editor only edits the very first area of the game… | Level Editors | NES | Crystalis | DOS | 4.11b | 11 Apr 2000 |
 Crystalis Bytes | Prgworks | Currently you can change many properties of the monsters. HP, speed (in basic form), experience, resistances, damage, minimum level to hurt, and others. You can change the values of the gold drops and change which monsters use them. And you can also …. | Game Specific | NES | Crystalis | Win | 0.0.5.0 | 05 Aug 2012 |
 CursEd | never-obsolete | Level/Enemy/NPC/Text/Graphic Editor for Castlevania II: Simon’s Quest. | Level Editors | NES | Castlevania II: Simon’s Quest | Win | 0.21 | 14 Apr 2009 |
 CV1Edit | SnowBro | A level editor for Castlevania | Level Editors | NES | Castlevania | DOS | 1.0 | None |
 Data Move | KingMike's Translations | Made for quickly copying large blocks of data from one location to another within a file, or copying to another file. | Miscellaneous | NES | N/A | Win | 1.0 | 27 Sep 2006 |
 DCC6502 | Tennessee Carmel-Veilleux | DCC6502 is a command line multi-platform 6502 dissassembler. This dissassembler has many options, including Nintendo register commenting which is really useful for the NES/Famicom ROM hacker. https://github.com/tcarmelveilleux/dcc6502/ | Assembly Tools | NES | N/A | Win | 2.x Git | 02 Sep 2018 |
 DECROM | Fx3 | Converts NES tile information into ASCII | Miscellaneous Graphics Tools | NES | N/A | DOS | 2.1 | 08 Aug 2000 |
 Deep Dungeon | Pinkpuff | This is a randomizer of sorts for Final Fantasy 1. It essentially erases all the existing dungeon data and turns Coneria Castle into a procedurally generated 50-ish floor dungeon. Every so many floors there will be a branch to the next town. You…. | Game Specific | NES | Final Fantasy | Win | 1.6 | 05 Apr 2020 |
 Demolition | Dan | Demolition is a simple level editor for the NES game, Wrecking Crew. There’s not much really to say about it, as all it can edit are levels. | Level Editors | NES | Wrecking Crew | Win | 1.0 | 23 Jul 2003 |
 Destiny of a Text Editor | Niahak | A simple text editor for Destiny of an Emperor. | Game Specific | NES | Destiny of an Emperor | Win | 0.04 | 16 Feb 2009 |
 Destiny of an Editor | Niahak | An officer editor for Destiny of an Emperor, still under development. DoaE uses officers for both allies and enemies, so this acts as a character editor and enemy editor in one. | Game Specific | NES | Destiny of an Emperor | Win | 0.94 | 18 Feb 2008 |
 DigDugNESTextEditor | sleepy | DigDug NES Text Editor
Programmed by: Shawn M. Crawford [sleepy]
Last Update: August 21th, 2016 in C#
Latest Build: 1.0.0.21909
Features: * edit every line of text in the game * this version tested with J rom (Dig Dug (J).nes), might…. | Game Specific | NES | Dig Dug | Win | 1.0.0.2190 | 21 Aug 2016 |
 Dizzy Pack/Unpack | ffgriever | This is more useful than the Chronix tool (it has parameter support). It can extract from the ROM, decompress and compress tiles. The archive contains the compiled program, source code, and example of batch file. | Miscellaneous | NES | The Fantastic Adventures of Dizzy | Win | 0.1 | 23 May 2008 |
 DizzyEdit | Grimm | Easy to use map, items and enemy editor for The Fantastic Adventures of Dizzy. Unfortunately missing tables with rats, fishes, key items, stars and mini games maps (boubbles, trolley, river). Archive is a repack of original release. Contain compil…. | Level Editors | NES | The Fantastic Adventures of Dizzy | Win | alpha | 29 Jul 2006 |
 DPCM Ripper | Damian Yerrick | This is a DPCM ripper kit that will rip DPCM samples out of NES ROMs to use in your own projects. A second application can convert 8 bit unsigned .WAV files to 1 bit DPCM samples for your own NES projects. Could also be used to change DPCM samples in…. | Sound | NES | N/A | Win | 1.0 | 16 Apr 2007 |
