It does not work well with Blender 3.4.1. Also asking again is this project abandoned? Thank for great addon in any case :)
Hello! I've recently ported Sprytile to Blender 4.3+. It might have some bugs here or there that I'm working on stabilizing but for now it does indeed function in 4.3!
https://github.com/invntiv/SprytileForever/releases