Nonogram solver editor
Tag FLAC ,Vorbis, Lyrics, WMA, Wavpack, ID3 Tags in a Smarter Way.
A suite of tools for any RPG system
GameWhizzards is a user created, Open Source 3D MMORPG
A friendship bracelet pattern designer.
A console/ncurses chess engine frontend and PGN editor.
A graphical NBT editor for all Minecraft NBT data sources
Karel - 3D language interpreter
Extendable editor for manipulating lumps in DOOM WAD files.
A planetarium software that shows a 3D simulation of the night sky
A fantasy RPG.
A framework to build Pokémon RPG games
Save game editor for Imperium Galactica 1
Transport Giant Config Editor
EE Keeper is a saved game editor for Baldur's Gate Enhanced Edition.
Blanker is an editor for creating blanks to write a lot of chess.
MCEdit: World Editor for Minecraft
Tools using the s3pi library and other related works