Glad you liked it! Sadly I couldn't dive deeper into level-design, because I was running out of time. My original idea was that the player would have to switch between surface and underground multiple times and even connect them gameplay wise, so if you would do something down there it would effect the surface and vice versa. (Like digging into a pond from below and having the water come down.) It also was supposed to be less linear. But I'm planning to continue development, so you can check back on the game page later on, if you're interested.