
Idle creature-collector, where you mine, train, breed, explore and more with your creatures. Discover all there is in the world of Koltera.
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In this Creature-Collecting Idler, Koltera, you Mine and Train with creatures. As your creatures grow, they will grow stronger furthering their ability to help you. Discover upgrades that will further this output and make things easier. As your operation grows, so will your ability to discover new creatures and trade with traders. Koltera offers 41 unique creatures, each with 11 augmented versions. That's 450+ creatures to collect!
Collect over 450+ creatures (41 unique & 11 augmented versions of each)
Upgrade from over 18+ different upgradable effects
Accumulate coins from your idle mining operation and continue to increase it's output through upgrades and other mechanics
Balance and tinker with different creatures, each with their own unique set of genetics, and species base stats
Breed and min-max the output of your creatures, by trying to create a perfect one
Trade with the traders, in order to discover new species, with rarer creatures having increasingly harder requirements
Create a garden which plays like a typical incremental game, in order to summon legendaries
Earn offline progress (un-capped) while you are away. You will earn coins and lumin when you come back.
72% positive reviews all-time · 10 peak players in the last 30 days.
Koltera peaked at 10 concurrent players on Steam in the last 30 days (highest on Jul 14, 2026). The player chart on this page updates daily.
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