Ikimono Hakoniwa
Watch a tiny ecosystem grow
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
New in 2.1: redrawn animals that walk, eat and swim in 8 directions, and shadows that follow the sun. Maps up to 3 screens wide, 18 Challenges and a Field Guide.
Ikimono Hakoniwa is a tiny ecosystem you can watch. Plant grass, place a few animals, and the food chain takes over: they graze, hunt, flee, breed and decline on their own.
- Just watch
No goals to hit. Place rabbits, buffalo, foxes, wolves and crocodiles, then follow the ups and downs on the population graph. Change the speed, toggle day and night, and tune how fast each group breeds. "Place in bulk" in Settings drops 5 or 10 animals at once or fills the map with grass. (Free version: 30 minutes per day; Place in bulk: 5 tries per day.)
- Explore a bigger world
Use Map size in Settings to make the free-mode map 1, 2 or 3 screens wide. Pinch to zoom, and use the Move tool or a two-finger drag to look around. Tap the minimap in the lower left to jump straight to a distant herd. The bigger the map, the more creatures it can hold.
- Challenges (18 stages)
Goal-based stages such as growing 40 rabbits, keeping foxes alive under wolf attack, or helping a crocodile ambush its prey. You have limited placements and time. Clear fast and with few moves to earn all 3 stars. (Free version: stages 1-6.)
- Field Guide
Read about each creature and terrain, compare speed, swimming and vision, and explore the food chain diagram. Your own observation records are kept too. Unlock 20 discoveries, like a buffalo herd driving off a wolf.
- Observe tool
Tap any animal to see its age, hunger and what it is doing right now. Tap "Follow" to zoom in and track that one animal. (Free version: 3 times per day.)
- 3 save slots
Keep up to three of your favorite worlds, each with a thumbnail. (Free version: 1 slot.)
- Free and Full Version
The free version includes Just watch mode (30 minutes per day), Challenge stages 1-6, the Field Guide, the Observe tool and 1 save slot.
The Full Version is a one-time purchase (not a subscription) that removes the daily time limit and unlocks all 18 Challenge stages, 3 save slots, unlimited follow camera and Place in bulk, and lets you change the population cap of each species. Buy it from the Full Version item in the menu; use Restore Purchase when you change devices.
- The creatures
Rabbit: the weakest, but breeds fast and swims well
Buffalo: herds drive predators away
Fox: a small hunter that flees from wolves and herds
Wolf: the strongest, but slow in water
Crocodile: hides in ponds and rivers, waiting to ambush
Simple controls: just tap, plus pinch to zoom. The game works fully offline with no ads (the network is used only for the Full Version purchase). Available in English and Japanese.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New creatures and map
- Redrawn creatures: they face 8 directions and walk, eat and swim. Newborns start small and grow up.
- Animals sink into the water and swim, with ripples on the surface. Crocodiles lie in wait with only their eyes and nostrils above the water.
- Redrawn trees and rocks, now including conifers.
- Shadows follow the sun: long in the morning and evening, short at midday. The ground has gentle hills, and sandy shores surround ponds and rivers.
Improvements
- The arrows on the Move button have been redrawn to be easier to recognize.
Bug fixes
- In Free mode, grass sometimes grew back very slowly on one side of a river that splits the map. This has been fixed.
The developer, Kazuyuki Kikugawa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kazuyuki Kikugawa
- Size
- 34 MB
- Category
- Simulation
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
13+
- 13+
- Frequent
Cartoon or Fantasy Violence
- In-App Purchases
Yes
- Full Version $1.99
- Copyright
- © 2026 Kazuyuki Kikugawa

