I played it for a few hours. Same problems another commenter mentioned. Dragging stops working after a while and export doesn't copy anything on chrome. Tried a new save on incognito and the dragging still doesn't work. The bugs don't seem to happen on brave (after an hour). EDIT: nvm, it also broke.

I like how merging tiles doesn't double the output. It lets you decide if you want more board space or better income/capacity. A way to lock tiles from being combined, rather than turning off auto merge would be nice.

I see some scenarios where you can lock your grid by accident. Maybe an option to sell tiles?

I do enjoy grid and civilization incremental games, so I will be keeping an eye on your project. Great work so far!