itch.io

I can't speak for the other engines but if it generates standard character sheets I can guarantee it will work with RPG Architect.  

Probably not. You might have to do some image placement manipulation in order to fit whatever standard your particular engine follows.

RPG Developer Bakin: 

• Overworld Sprites: x Slice Size 16, y Slice Size 20, Down/Left/Right/Up
• Portraits: You'll need to split these into individual sprites, and seem to need to reference the file directly during scenes, rather than attaching it to a character.
• Battler Sprites: Bakin wants all the animations to be their own spritesheets, so you will have to chop them up and reorganize. That said, it's hard to figure out the order of sprites on the battler sheet...

RPG Architect:

• Overworld Sprites: Frame Height 20, Frame Width 16, Oriented Around Center Frame = true
• Portraits: Seems like you can directly reference the tile sheet and crop it, and it is tied directly to the character, though I'm not sure if you can change it through code (telling it to uses sprite 0-8 to change the emotions.)
• Battler Sprites: Architect is able to crop the spritesheets, however the organization of the sprites seem incompatible, and probably requires some reorganization.

I'm sorry if there are any mistakes. I don't have either programs to actually test anything and am just going off of what I could skim from youtube videos.