Very cute, nice looking visuals. Nice take on an incremental style game! Agree with the comment below on being able to use keys for the tiles on the bottom :)
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Heya for the files, the F1 ~ F5 keys trigger building. The 'C' key also triggers the ability. You can view the shortcut keys at the top right of most buttons! However on web those keys aren't available as F1 and F5 trigger help and refresh, so they only show up on the downloadable versions for now.
I think he was referring to wishes having no shortcut keys as the other common UI buttons have keys!