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The protagonist's life takes a turn after their partner Yarimon learns the ultra-invincible move, the "Cheat Tackle". While challenging various trainers to participate in the Yarimon tournament, the protagonist unexpectedly discovers the secrets of this world.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Over 150 unique monsters! A massive RPG with an abundance of rich content.
Train your monster with the goal of becoming the champion!
Only the main character's partner possesses the cheat move called "Cheat Tackle".
It ensures a guaranteed first strike and a one-hit kill.
In the easy mode, you can even use it endlessly!
In this world, there exists mystical creatures known as "Yarimon".
Known as the loner protagonist with the weakest Yarimon... until now, that is.
In a surprising turn of events, the protagonist's Yarimon partner learned a godly-powerful move with a power level of 800,000 called the "Cheat Tackle".
With this, the protagonist's world completely changed, as this move will one-shot any opponent in battle (though it is only usable once per battle).
Of course, it would be foolish to believe that one can become the champion with just a single move. Therefore, a trainer must continue to hone their skills and diversify their strategies.
With that said, defeating my childhood friend for the first time is already a crazy accomplishment.
I can finally get back some of the money I lost to her...
Afterwards, I set out on an adventure after my childhood friend told me she was going on a journey and pressured me to do the same.
As I am adventuring, I slowly unravel the secret of this world.
This is when I felt like my journey had really begun.
Aim to complete the Yarimon Encyclopedia (Yaridex)!!
Monster-taming RPG
Collect a variety of Yarimon and strive relentlessly towards the championship!
Gain EXP by battling either wild Yarimon or trainers.
With the advent of EXP shards, you will also be able to freely allocate EXP to your favorite Yarimon!
Uncover the truth and secrets that are hidden within this world!
Explore the secrets hidden in this world, gradually unveiling it's truth!
Over 150 monsters
Pixel art for each character
Illustrations for each character along with various facial expressions
Having a monster index
Right now the cheapest offer for Yarimono is PLN 114.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Yarimono is PLN 89.69 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Yarimono drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
