The game progress is slow, but this is common to idle games. Of that I have no large concern. The biggest challenge is the regenerating enemies at early levels. It forces literally hours of grinding to pass a single level. I feel that this is acceptable after being able to use the prestige mechanic (which I assume is available after lvl 15), but not prior to having the option to take a small advancement and try again with leveled up perks.
Overall the game has a lot of potential, with many different upgrades and choices for resource allocation.
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