Hapsby is a semi-universal save game editor for Java
platforms. Hapsby allows you to "cheat" at your favorite game by
editing the save file; or it can be used to edit the save states of any
emulator.
Although originally intended for use with Nesticle
(*.st*), Genecyst (*.gs*),
and Meka (*.sav) save games,
it can theoretically be used with any game. Here's how it works.... Hapsby
keeps a directory filled with save game definition files (.hsd), each file
contains information about a game and what can be edited. Common things
you'd want to edit would be money, hit points, experience, and items.
Creating these files is slightly technical, but if you're not the
technical type don't worry. If enough advanced users write just one or two
save game definitions apiece, there will be a worthy archive in the near
future.
I know that other universal save game editors exist. I
went out of my way to avoid trying any of them so no one can accuse me of
"ripping off" their program. However, this also means I have no
real way of knowing how Hapsby stacks up against them. Then again, if I
actually thought there was a fierce competition for save game editors I
wouldn't be giving away the source code.