Beastie Bay

Contains adsIn-app purchases
44.7K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Mild Fantasy Violence
Digital Purchases
Learn more
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About this game

Washed ashore a desolate island and surrounded by savage beasts, can you thrive...or merely survive?

Blaze trails into unknown territory...and then make it your own! Plant crops, build housing and power sources, and transform the island into your own personal paradise. As you progress, you'll be able to develop new gear and technology to take your adventure to the next level, including ways to travel to unexplored islands nearby!

The native fauna eyeing you as their next meal? Capture the critters, trade them with friends, and train them to fight for you! Most have elemental strengths and weaknesses, so use these to your advantage in battle.

Venture far enough afield and you may find signs of civilization. If you make the right friends, your humble isle could grow into an economic powerhouse, complete with hot springs, hotels, and heliport. The possibilities are as limitless as the horizon!

Survival of the fittest was never so fun! You call the shots as you develop your primitive isle into a luxurious slice of paradise!

* Game data is stored on your device. Save data cannot be transferred between devices, nor can it be restored after deleting or reinstalling the app.
* Certain features (e.g., removing ads) require in-app purchases and become available once you reach a certain point in the game.

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Try searching for "Kairosoft" to see all of our games, or visit us at https://kairopark.jp. Be sure to check out both our free-to-play and our paid games!
Experience a beast of an island adventure
Updated on
Jan 15, 2026
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity, and App info and performance
  • This app may collect these data types
    Personal info, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

39.9K reviews
A Google user
June 1, 2019
This engaging, replayable game could easily be worth over 5 stars if not for the crippling inability to back up one's save data. After i'd been playing several hours each day for over a month, the game crashed so hard my tablet powered down & the app file was corrupted, obliterating 100+ hours of progress. I find it unacceptable that a game so heavily reliant on cumulative progress provides NO means of protecting that progress, and that it can be lost through no fault of the user. It's worth mentioning, though, that i then spent months figuring out my own backup solution specifically so i could play THIS game without fear of losing data again. That's how much i enjoyed it! And both after the crash and when my score that would have been #7 worldwide failed to be added to the online roster -- which i don't expect to be fixed, BTW -- customer service was very responsive and friendly!
132 people found this review helpful
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Luis Gonzalez
July 31, 2020
Ngl, I thought this was sketchy at first, but fortunately I was wrong. This game is a fantastic combination of action and idle, a masterful mix of tycoon-style building and pokemon-style battling and training. UNfortunately, this is one of many interesting looking games made by these people, so I can't stay glued to it forever. From what I've played though, it is quite a bit of fun to play and learn about another fantastical world with exquisite adventures everywhere. 👍✌
87 people found this review helpful
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M Chadwick
April 25, 2022
Forget the add that is at the bottom. It won't even fully open. I get the company title then MESSAGE You can not start. Authority: Please re-boot to allow storage. You will need to save the game. Access to the path "/data/data/net.kairosoft.android.mujin_en" is denied. I had the game before and really liked it then switched phones and forgot about redownloading it until today. It had really cool concepts and was really addictive and fun. But now I can't even play it.
14 people found this review helpful
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What’s new

Now available in Traditional Chinese, Simplified Chinese and Korean!