I kept getting an abrupt "game over." When I run the game it looks like a debug window spawns and it logs an error each time there is an abrupt ending. The errors vary, but one reads "ERROR: Parent Node is busy setting up children, add_node() failed. Consider using call_deferred("add_child",child) instead." Another reads: "ERROR: resumed function '_on_ship_player_death()' after yield, but script is gone..." I am running 64bit Windows 10 btw, I'm not sure if your Apple build has the same issues.