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GeminiHorizon
Case Study · enchantedzoo.com

How the idea of a calm zoo game for young children became a 3D browser game with 45 real-size animals, four worlds and its own website. No ads, no sign-up, nothing to install.

3D browser gameThree.jsPerformanceWebsiteSEO
Client
Year
Industry
Services
Project type
Enchanted Zoo on a laptop and a smartphone
45
Real-size animals
in four worlds
135
Fun facts
to read out together
0
Ads, tracking or sign-up
in the game
Starting point

Most games for young children rely on countdowns, flashy effects, ads and in-app purchases. Enchanted Zoo wanted the opposite, a zoo where children from age three can stroll around calmly, marvel at the animals and learn something along the way.

The game had to run straight in the browser without an app store, including on the older Android tablets that so often end up with the kids. And it had to pay for itself through voluntary donations alone.

„A zoo where children are allowed to marvel, without anyone making money from their attention.“

— Kristof Hulmann, founder of GeminiHorizon
K
Starting point

What was holding it back

Enchanted Zoo
01No app store, nothing to install
02Usable by children who can't steer yet
03Smooth on old and weak tablets
04No ads, no tracking, no sign-up
05Funded by donations only
Context

A zoo where children are allowed to marvel, without anyone making money from their attention.

What we did

The game and the website were built entirely from scratch. Every decision had to pass two questions, whether a child understands it and whether an old tablet can handle it.

01

A walkable zoo with four worlds

From the entrance plaza with its fountain, four gates lead into the Animal Park, Dino Land, Magic Forest and Aquarium. Each world has its own look and its own music. 45 real-size animals roam their enclosures, eat, rest and come up to the fence.

Three.jsWebGL3D
02

Fast on old tablets

Only the world you are in is loaded. Fences, plants and rocks are merged, from up to 4,400 down to 200 to 450 draw calls per world. Animals out of view pause their animation, and the resolution adjusts itself when a device starts to struggle.

PerformanceTabletsOptimisation
03

Being a zookeeper, without pressure

Children feed and wash the animals, clean up, do daily jobs and collect stamps in their zoo passport. There are also fact cards, animal names, a photo mode and day and night. There are no timers and nothing can go wrong.

Game designKidsUX
04

Controls for the youngest

Children who can't steer with the joystick yet travel straight to any animal from a picture list. Big buttons, custom icons, real animal sounds and a calm piece of music composed for each world make the zoo accessible for children from age three.

TouchSoundControls
05

Website, donations and community

The website enchantedzoo.com loads without cookies or third-party servers, is prepared with structured data for Google and AI search, and shows a roadmap with donation goals. A wish form, a licence for 3D artists and a thank-you wall in the game bring the community in.

WebsiteSEOCommunity
Insights

Enchanted Zoo in the browser, the giraffe's fact card with feeding and washingEnchanted Zoo website on smartphonesHomepage of enchantedzoo.com in the browserEnchanted Zoo in the browser, quick travel to the animals in Dino LandEnchanted Zoo in the browser, unicorns in the Magic ForestWorlds, numbers and donation goals of the website on smartphonesEnchanted Zoo website in the browser, zookeeper sectionEnchanted Zoo website in the browser, roadmap with donation goals
Result

Enchanted Zoo runs on tablets, phones and computers right in the browser, with nothing to install. Families get a calm game without ads that sparks curiosity, and the client gets a website that explains the game, gets found and collects donations.

4
Worlds with their own music
45
Real animal sounds
up to −90 %
Draw calls per world
0 €
Ads and in-app purchases
Playable on tablet, phone and computerSmooth even on older Android tabletsNew animals and worlds can be added without a rebuildNo cookies and no trackers in the gameDonation model with clear goals instead of ads
Strategic insight

Calm, clarity and speed are not extras here, they are the product. A game that works without ads and pressure has to be all the cleaner technically, so it works on every device.

Performance decides whether a child can play at all

Fewer stimuli don't make a game more boring, they make it more accessible

The browser replaces the app store and lowers the barrier for families

A website with a roadmap turns supporters into co-creators

I build web apps and 3D experiences that run smoothly even on weak devices, with the right website to go with them.

Your digital vision – clear and ready to build

Have a project in mind? Tell me about it in a short, no-obligation call, and I'll tell you honestly how I would build it.