The text is very small, even when zoomed in. The text on the variables is very hard to read. Rather Than "Number 8", You could say "8". The multi-language text is distracting and takes up extra space. Instead of showing both Chinese and English, let me pick my language. It would make the game more inviting to English speakers. Allow me to drop building on existing belt. The screen scrolls slowly with the keys. The zoom is also slow. I cannot drag the screen with the mouse. I should be able to press on...

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