We do have a achievement system planned but I'm not sure if it will make it this chapter of the game. We will see! With unlockablesSo I had a thought that I felt would be a neat thing in the game.
As a Time Travel game it might be a neat (sneaky) thing to put some sort of counter in the game for extra/expanded/altered scenes when people do multiple starts/playthroughs. I know it would be more work, but even a few changed (more revealing/SEXY) renders would be a cool bonus for those who play the game multiple times from the start.
Just a thought.