One thing you could try is right clicking on the SL.app, choose "Show package contents" and navigate to Contents/MacOS, drag the SL file to a terminal window and hit enter. It might take a while to load. If the application fails to start, it should print something to the terminal window.
Wow! It worked! I was able to launch and play the game. One problem though- because it's a script, it doesn't seem to be able to keep save files. I keep losing my progress... can the SL script make save files on it's own?
