very nice idle.
But i have some suggestions for late game.
Rebirth - Reset your level for Upgrade point that are used to upgrade X or Y resource/vendor/research/starting money. in X or Y ways.
Upgrade X resource with X quantity
Example i got wood and id need 10k wood to make production faster.
ofc this is comming from a lvl 11 which is early
Regardless very nice game once again keep going :P
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Interesting idea, thanks for the suggestion.