If the graphical version needs a separate trainer I'll whip that up later.
As for Torchlight, it turns out the same routine is used for health depletion all-around, so making the player invincible also makes the enemies invincible... so I'll need to try another method.
EDIT: A method that doesn't cause sound issues...
EDIT2: Okay, so I had a couple failures in torchlight...
But it looks like we're good to go now. Updated the first post with the link to 1.1, which has a couple more options as well (money, skill/stat points, leveling speed).
EDIT3: As for Nethack, the trainer for the console won't work both because it's looking for a different process name, and the code isn't the same anyways... but it
looks like nethack is using static addresses for the important stats, so I'm making a trainer for the tile version now... it's just annoying to find the hunger value in RAM.
EDIT4: Nethack tile version added to first post for testing.
EDIT5: Damn, looks like I didn't get health working for Torchlight after all (nor the stat/skill point increases). I can modify the code so that stat/skill points aren't used up, but as a side-effect when you use them on skills the tab doesn't visually update until you refresh it... but it seems functional so I'll leave it in like that for now while I try yet again to get health working.
EDIT6: Okay, I think I have the health and such working, and I also added fast EXP gain and +hundreds of skill/stat points per level, so version 1.2 is linked now.