Thank you for your feedback, and we're really glad you liked the visuals!
No ray tracing here, it's all done with Unreal Engine's default lighting and a post process volume to tweak the mood and colors.
As for the colored crystals, you're totally right. We’re aware that the mechanics weren’t very clear, and we’ll definitely improve the guidance and pacing in future versions (and maybe even add a sprint button 😉). Thanks again for playing!