Koltera

Koltera

Braymen · 2023 · RPG, Idler, Adventure, Casual, Creature Collector

PC
Mixed65% · 95
This game is free to play. Get it on Steam →

Screenshots

About Koltera

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.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Apr 8, 2026
O jogo é bem simples, não tem nenhum apelo gráfico pra te chamar atenção mas os bichinhos são bem feitos, da vontade de ter todos. Se você se programar bem, consegue completar a sua log bem rápido, o mais chato é conseguir os minérios para as diversidades. Achei o grind de 1 bilhão extremamente massante porque todo o restante do conteúdo das conquistas você consegue fazer cedo, passei umas 50h só acumulando o ouro pra platinar. O visual dos upgrades de minério faltou esforço, só jogam cor em cima dos designs e é isso, não muda independente do personagem.
3 found this helpful
Recommended Apr 14, 2026
[h1]Summary[/h1] Free simple creature collector idler ramping up quick turning into a monster breeder game to collect all species, it's variants, and perfecting their genetics and vibrancy. [b]Pros[/b] + Simple chill fun + Has potential [b]Cons[/b] - Repepititive - Too simple [h1]Overview[/h1] Koltera is a free and simple creature collector idler. It has a slow start but the incremental progression ramps up quite fast with the goal of collecting all the available monsters, while also trying to perfect them with max genetic purity and vibrancy of every species variant. As you start, you will spend some time setting up your available starter monsters to level up and collect the things you need which will level yourself to unlock upgrades to speed things up. With more unlocks and a growing number monsters, it shifts from a simple idler collecting money and monster soulstones to a more active breeding game. At this point you'll spend a lot of time attempting to breed the perfect monster with max genetic purity and vibrancy for every variety of the species to complete your collection and the game. Achievements aren't particularly difficult but needs time and patience to collect all…
2 found this helpful
Not recommended Mar 24, 2026
Played it when it was a pay for game and then got a bit screwed over with the whole f2p release since it was pretty close to when I paid for the game with no real compensation it felt like so I stopped playing due to that. Came back to 100% on the achievements only to run into some bugs and having to essentially either cheat the achievements in or create a new save to make them be given to me. The combiner used to be so much better too but it seems heavily nerfed and honestly useless compared to just spam breeding and releasing. Hopefully Koltera 2 is better.
1 found this helpful
Recommended Jun 15, 2026
awesome game
Recommended Apr 30, 2026
basic f2p game with no mtx. Pokemon but an idle game
Recommended Apr 12, 2026
Cute idle game. Quite different from its sequel. Enjoyable.

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