Thanks for the feedback! Yeah... maybe the game is a bit too easy. During our early playtests it felt a little too difficult, so I decided it was better to keep it more accessible overall rather than making it overly challenging.
And yes, you're absolutely right!! every tile you remove increases the chance of an exit appearing. I tested several different probability curves, and in most cases the exit would show up around the 30th tile. That said, it's true that with a lot of luck it can appear much earlier...
Thanks again, we really appreciate your feedback!! <3