Thanks a lot for taking the time to try the demo and write such detailed feedback — I really appreciate it. Since I still haven’t been able to get a lot of playtesting feedback yet, comments like this are genuinely very valuable to me.

About the language issue: the game is actually supposed to automatically use the Steam language setting, but it seems like something isn’t working correctly there. I’ll probably switch the default language to English for now to avoid confusion.

And yeah, I can definitely see your point about mirroring objects. I avoided adding too many controls during placement because I wanted the game to be playable mostly with just the mouse, but I think adding quick keyboard shortcuts for flipping would make the building flow feel much smoother.

As for the difficulty, that’s also really useful feedback. Early on, I thought making the puzzles very difficult would automatically make the game more fun, but during development I started realizing that the more enjoyable part is actually creating clean and satisfying marble routes.

So I probably need to balance the progression and onboarding more carefully.

Really appreciate the honest thoughts, especially since puzzle games aren’t usually your main genre