Thanks for the feedback! Glad you enjoyed it. I'm excited to put much more into the next version until it is done for the final version. Hope to see you around for that again and read your feedback :D
While playtesting with a few people, I tried to find a balance between: Showing where a big upgrade is waiting for you (showing it with the crystal) and not holding the hand of the player too much ^^
And I never thought of moving the camera with WASD! I can add that. Good suggestion!