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The project file of Napas Alveolus costs US$89. Use the "Buy project file" section on this page to pay online or order via WhatsApp; bundle discounts apply when you buy several games.

Cerdas Inovasi DigitalSoftware Developer ~ Custom ServicesTraining ~ Established since 1995

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Napas Alveolus

Control the diaphragm and your breathing rhythm from sleeping to sprinting to keep blood oxygen safe

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Napas Alveolus is a breathing simulation game that puts players in real control of a child’s lungs. Hold the screen to contract the diaphragm and breathe in, release to breathe out, then match your breathing rate and depth to activities that change from sleeping and walking to stair climbing, cycling, swimming, mountain hiking and sprinting. An anatomy panel shows the diaphragm, the lungs, a lung volume graph and an alveolus where O₂ enters the blood and CO₂ leaves it, so dead space, hyperventilation, thin mountain air and the danger of carbon monoxide are felt directly while playing. Try it right here below, then picture a game like this featuring your brand’s logo, characters and prizes.

Play It Now

Hold the screen, Space or Up arrow to breathe in · release to breathe out · follow the target line · P pause · M sound

Play Full Screen (best on phones)

Rotate your phone to landscape for the best experience.
Add to Home Screen from your browser menu for quick access.

Game Info

CategorySimulation Game
ThemeScience & Technology
LanguageID · EN

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Gameplay

15 progressive stages with different settings: bedroom, garden, the walk to school, stadium, rice fields, swimming pool, smoky street, pine hill, beach, football pitch, mountain peak, night festival, triathlon and a sunset marathon
An accurate breathing model: O₂ demand and CO₂ output that follow each activity, 150 mL of dead space, the haemoglobin saturation curve, lower air O₂ pressure at altitude and carbon monoxide from smoke
Unique challenges per stage: breathe in only when your head surfaces while swimming, hold your breath through smoke, and keep CO₂ from running too high or too low when switching from a sprint to an easy walk
A living anatomy panel (diaphragm, lungs, heart, an alveolus with red blood cells), a lung volume graph with a target line, combos for well-timed breaths, three stars per stage and 17 Did You Know? cards in Indonesian and English

Production Quality

Original graphics, characters, music and sound effects created by our team
Plays instantly on phones, tablets and laptops with nothing to install, lightweight and smooth at 60 fps
Touch and keyboard controls, with high scores and progress saved on the device
Available in Indonesian and English

Order One for Your Brand

Embed it on school, tutoring or science museum sites as an interactive respiratory system exercise for middle and high school biology
Swap the colours, mascot and text for a hospital, lung clinic or sports brand’s identity in healthy living and anti-smoke campaigns and touch-screen exhibitions
Add online leaderboards, coupons or prizes, QR codes for events and visitor data forms
Fast turnaround from concept to launch, including setup on your website or app

Play Napas Alveolus Online for Free on Phone and Laptop

Napas Alveolus is a breathing and gas exchange simulation game you can play online for free right in your browser, with no download and no app to install. It runs smoothly on Android phones, iPhones, tablets, laptops and PCs, so it is perfect for a quick break at any time. The difficulty rises step by step, welcoming for beginners yet still challenging for experienced players. Napas Alveolus is developed by PT Cerdas Inovasi Digital, a game development studio in Indonesia, and can be customised for brand promotions, events and education.

Play Full Screen

Frequently Asked Questions about Napas Alveolus

Is Napas Alveolus free?

Yes. Napas Alveolus is free to play online in your browser, with no download and no sign-up needed.

Can I play Napas Alveolus on my phone?

Yes. It runs in the browser on phones, tablets and laptops. On a phone, use the full screen button and rotate to landscape if the game needs more room.

How do I play Napas Alveolus?

Hold the screen, Space or Up arrow to breathe in · release to breathe out · follow the target line · P pause · M sound

How many levels does Napas Alveolus have?

Napas Alveolus is built in progressive steps, with the difficulty rising as you play. Category: Simulation Game.

Can I order a version with my own brand?

Buy the Napas Alveolus Project Files

Get the full game to learn from, customise for your brand or publish on your own site.

Complete source code (HTML5 Canvas + JavaScript), no libraries or build step needed
All levels, graphics, music and sound effects included, ready to run in any modern browser
A short guide to changing texts, colours and difficulty and putting the game on your own website

Instant download after payment · secure checkout by PayPal · Buy 3+ games together and save up to 30%

Want a game like this for your brand?

We design and build custom games for event activations, booths, campaigns and education, complete with your logo, mascot, prizes and leaderboards. Besides web (HTML5), we can build it in the format you need: Unity, Unreal Engine, Godot, an Android/iOS app, a desktop (Windows/Mac) game, a touchscreen kiosk, WebGL 3D, or AR/VR. Tell us your idea and we will send a concept and quote.

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