Unit Upgrades

Unit Upgrades are improvements for units. Once you have enough of a certain creature, you can perform an Upgrade, which will double the output of that unit. Unlike most idle games, upgrading a unit in this game consumes a certain amount of that unit. 
Units that can be upgraded will have an asterisk (*) next to their name in the Unit List. Upgrades DO NOT persist on a Prestige.
Be careful of upgrading as soon as you see the asterisk. Upgrading too soon can consume a massive chunk of that unit, which will essentially stop the production of lower units in that Faction and seriously bottleneck your progress in that run. It is possible to recover from this with time, but depending on how early in the game you are, it may be quite a while before you're back to full production.
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